641:
591:
748:
29:
413:
694:
528:
324:
473:
247:) was largely rock and quite close to the D.C. shoreline. Due to deforestation and increased agricultural use upstream, the river eroded much of the northern bank of the Potomac River and widened the gap between Analostan Island and the shore. Simultaneously, large deposits of silt built up around Analostan Island. By 1838, Analostan had almost doubled in length toward the south. By 1884, the new southern part of Analostan Island was defined and built up, and supported a well-established
1238:
332:
535:
351:
dike was then breached (and removed by dredge), allowing barges and other ships to deliver construction materials quickly and cheaply to the building site. More than 1,000,000 cubic yards (760,000 m) of earth and riverbottom were excavated, and
Boundary Channel's lagoon enlarged by 30 acres (120,000 m).
369:
anchored in the lagoon, was charged with her murder. It quickly became apparent that Holmes was insane (and had, in fact, escaped from a
Virginia mental hospital in 1931). The phrase "Pentagon lagoon" was first used by the federal government in 1945, but the formal name "Pentagon Lagoon" was not used
350:
inland on the
Virginia shoreline. The earth behind this dike was excavated to a depth 14 feet (4.3 m) below the Potomac River's average high tide. On what was to be the new shoreline, the Army and its contractors built cement plants and marshalling areas for the deposit of sand and gravel. The
345:
During construction of the
Pentagon in 1941, the U.S. Army not only needed a source of fill material to raise the land around the Pentagon, but also needed a way for river barges to deliver concrete, gravel, and sand to the construction site. With unused Columbia Island nearby, the Corps of Engineers
292:
Boundary
Channel marks the original Virginia shoreline. It separates Columbia Island to the east from Virginia in the west and south, and is roughly a mile long. The channel is part of the Potomac River. In 1936, Boundary Channel was 100 to 200 feet (30 to 61 m) in width and 4 to 6 feet (1.2 to
262:
widened the distance between
Analostan/Theodore Roosevelt Island and Columbia Island (so that the "Virginia Channel" west of Analostan/Roosevelt Island would not flood easily). Dredged material was piled high on Columbia Island, helping to build it higher, lengthen and broaden it, and give it its
273:
across the
Potomac River. Preliminary designs for the bridge showed it terminating on Columbia Island, which necessitated additional expansion of the island. The Corps of Engineers had already planned to continue dredging the Potomac River and enlarge Columbia Island, so on April 1, 1925,
312:, the Army officer in charge of the Pentagon's construction, decided instead to raise the ground by at least 8 feet (2.4 m) to 18 feet (5.5 m) or more above the average water level. Boundary Channel was dredged and slightly widened in order to help provide this fill material.
373:
When the
Pentagon Lagoon was surveyed in 2000, the eastern entrance channel was 7.5 feet (2.3 m) deep. Depths of 5 to 8 feet (1.5 to 2.4 m) were common in front of the Columbia Island Marina, while 2 to 7 feet (0.61 to 2.13 m) was common elsewhere in the lagoon.
640:
300:
on
September 11, 1941. The Pentagon was being built on land just south of the Boundary Channel. But the ground to the northwest, north, northeast, and east of the building site was so low that, for a time, the Corps of Engineers considered building a
360:
after a brutal murder there in
September 1944. Virginia police found the nude body of 53-year-old Mrs. Margaret Fitzwater floating in the lagoon on the evening of September 24, 1944. Her throat had been slashed, and she had been
230:
shoreline. It curves around the southern tip of Columbia Island before heading northeast to exit into the Potomac River. At the southwestern tip of Columbia Island, the Boundary Channel widens into the manmade
1737:
383:
1839:
342:
Pentagon Lagoon is a shallow pool which is part of the Boundary Channel. It was originally constructed as part of the channel, and was originally quite small as well as unnamed.
1871:
2240:
1783:
2133:
1825:
2143:
646:
2037:
1938:
2138:
1216:
Interior Department and Related Agencies Appropriations: Hearings Before a Subcommittee of the Committee on Appropriations of the United States Senate on H.R. 6236.
289:. The dredged material was dumped on Columbia Island. By June 30, 1927, dredging of the Potomac River and the reshaping of Columbia Island was largely finished.
315:
Due to silting and other issues, Boundary Channel is approximately 100 feet (30 m) wide as of 2013 (although the width varies). It is also quite shallow.
2409:
2299:
1133:"Arlington Memorial Bridge, Boundary Channel Extension, Spanning Mount Vernon Memorial Highway & Boundary Channel, Washington, District of Columbia, DC"
2523:
2509:
1197:
Committee on Interstate and Foreign Commerce. U.S. House of Representatives. 79th Cong., 1st sess. Washington, D.C.: U.S. Government Printing Office, 1945.
2495:
1790:
480:
879:
2502:
2294:
2230:
1887:
1299:
2304:
2314:
1818:
1278:
2289:
1948:
2250:
1218:
Committee on Appropriations. Senate. United States Congress. 79th Cong., 2d sess. Washington, D.C.: U.S. Government Printing Office, 1946.
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346:
quickly removed a portion of the island as well as dredged the bottom of the lagoon for this fill material. The Army also constructed a
2551:
2404:
1319:
2624:
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2587:
2435:
2414:
1314:
147:
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1304:
223:
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2489:
1688:
1545:
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84:
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1426:
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current shape. The new island received its name about 1918 from an unnamed engineer working for the District of Columbia.
2785:
1439:
604:
327:
Aerial view of the Columbia Island Marina and the Pentagon Lagoon in relationship to The Pentagon and the Potomac River.
266:
An anonymous Corps of Engineers officer named the waterway between Columbia Island and Virginia the "Boundary Channel".
2795:
1933:
1271:
1083:
806:
761:
710:
657:
590:
554:
435:
418:
282:
747:
491:
251:. Gradually, however, the river eroded the center of Analostan Island, severing Columbia Island from its parent body.
1434:
2092:
2076:
1797:
1612:
542:
1703:
1645:
2602:
2581:
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2062:
1730:
1195:
Federal Aid for Public Airports: Hearings Before the Committee on Interstate and Foreign Commerce on H.R. 3170.
275:
2389:
1565:
1264:
2446:
1910:
1723:
1638:
28:
2379:
2374:
1852:
1744:
1716:
1492:
1485:
412:
269:
Boundary Channel was further defined in the late 1920s. In 1925, Congress authorized construction of the
2478:
2394:
2363:
2344:
2329:
2207:
2200:
2013:
1858:
1631:
1601:
1575:
1450:
1408:
1402:
1395:
693:
527:
2420:
2193:
1752:
1698:
1693:
1457:
270:
244:
243:
Columbia Island is in part natural, and in part man-made. About 1818, Analostan Island (now known as
2220:
1902:
1804:
2616:
2384:
1967:
1665:
1624:
1588:
1383:
538:
323:
2780:
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2594:
2324:
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2740:
1847:
2700:
2695:
2153:
1876:
1413:
1243:
1209:
Annual Report of the Director of Public Buildings and Public Parks of the National Capital.
1059:"Boundary Channel Bridge, Spanning Boundary Channel, Washington, District of Columbia, DC"
8:
1894:
1606:
1088:
699:
356:
309:
211:
2720:
2715:
2670:
2427:
2279:
2042:
1022:. September 30, 1944, p. 7; "'Voluntary Witness' Charged With Pentagon Lagoon Murder."
472:
423:
335:
1251:
2735:
2245:
1775:
1766:
1759:
1464:
1093:
1010:. September 25, 1944, p. 1; Towe, Emily. "Secret Device Used in Murder Weapon Hunt."
1006:
Towe, Emily. "FBI Takes Over in Throat-Slashing Mystery of Widow Taken From Lagoon."
980:
United States Coast Pilot. Vol. 3: Atlantic Coast: Sandy Hook, NJ to Cape Henry, VA.
1014:. September 26, 1944, p. 1; "7-Hour Lagoon Search Fails to Produce Slaying Weapon."
857:
Office of Conservation, Interpretation, and Use, p. 48-49; Moore and Jackson, p. 91.
2725:
2685:
2570:
2459:
2225:
2148:
1943:
1682:
1519:
1324:
365:. Within days, 60-year-old Gardner Tyler "Pop" Holmes, an eccentric who lived on a
286:
219:
2440:
2334:
2048:
1832:
1811:
1539:
1534:
1500:
917:
Office of Public Buildings and Public Parks of the National Capital, 1927, p. 20.
306:
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2274:
2266:
2235:
2187:
2182:
2163:
2008:
1709:
1676:
1595:
1509:
1190:
Part 1. United States Army. Washington, D.C.: Government Printing Office, 1920.
195:
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1993:
1988:
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278:
215:
162:
149:
99:
86:
1132:
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2319:
2177:
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2019:
1918:
1553:
1334:
466:
Known as Humpback Bridge; widened and pedestrian underpasses added in 2010
297:
1018:. September 27, 1944, p. 3; "FBI Questions Six Relatives of Slain Woman."
388:
The following bridges cross Boundary Channel, listed from south to north:
2755:
2745:
2255:
2169:
2158:
2125:
2083:
2055:
2032:
1983:
1581:
1478:
1471:
982:
46th ed. Washington, D.C.: u.S. Government Printing Office, 2013, p. 291.
130:
2750:
2690:
2339:
2114:
2069:
1978:
1570:
1256:
993:
Ackerman, Stephen J. and Burton, Jon C. "Catch a Train, Catch a Fish."
254:
Between 1911 and 1922, the Potomac River was repeatedly dredged by the
1156:"D.C.-Virginia Traffic Eased as Two Projects are Put Into Operation".
2660:
2399:
2003:
1998:
1207:
Office of Public Buildings and Public Parks of the National Capital.
1026:. October 1, 1944, p. 1; "Holmes Sanity Test May Balk Murder Trial."
366:
281:
ordered the expenditure of $ 114,500 to dredge the river between the
384:
Construction of the Virginia approaches to Arlington Memorial Bridge
2454:
1339:
1329:
259:
227:
331:
248:
296:
Broundary Channel was changed again after ground was broken for
33:
Map of area surrounding Boundary Channel and the Pentagon Lagoon
338:
image of The Pentagon and part of the Lagoon, 25 September 1967
1202:
Geology, Hydrology, and History of the Washington, D.C., Area.
347:
302:
362:
1204:
Washington, D.C.: American Geological Institute, 1989.
904:"Potomac Channel to Be Dredged for Flood Prevention."
293:
1.8 m) in depth. No lagoon existed at this time.
1233:
1211:
Washington, D.C.: Government Printing Office, 1927.
1039:
Committee on Interstate and Foreign Commerce, p. 7.
1188:Report of the Chief of Engineers, U.S. Army, 1920.
226:extends southward between Columbia Island and the
1084:"Overhaul of GW Parkway Bridge to Hamper Commute"
978:National Oceanic and Atmospheric Administration.
973:
971:
2772:
866:Secrest, Meryle. "Park Named for Mrs. Johnson."
2477:
2362:
1193:Committee on Interstate and Foreign Commerce.
1170:"Legal Matters Delay Opening of Bridge Link."
968:
753:George Washington Memorial Parkway northbound
596:George Washington Memorial Parkway southbound
258:to deepen the channel and alleviate flooding.
238:
222:The channel begins at the northwestern tip of
1272:
935:"Oil Is Spilled Into Channel From Ft. Myer."
16:River in District of Columbia, United States
891:"Island to Be Remade in New Bridge Plans."
1279:
1265:
2645:
1286:
961:
959:
957:
860:
853:
851:
330:
322:
1966:
1664:
1382:
1048:Subcommittee on Appropriations, p. 147.
2773:
1081:
741:replaced wooden bridge opened in 1938
2644:
2568:
2518:South Fork South Branch Potomac River
2490:North Fork South Branch Potomac River
2476:
2361:
1965:
1663:
1381:
1260:
954:
885:
848:
256:United States Army Corps of Engineers
2569:
1349:Streams shown as: Major tributaries
1137:Historic American Engineering Record
1063:Historic American Engineering Record
481:Lyndon Baines Johnson Memorial Grove
13:
2791:George Washington Memorial Parkway
419:George Washington Memorial Parkway
318:
14:
2807:
1229:
354:The Pentagon Lagoon was named by
1236:
1214:Subcommittee on Appropriations.
746:
692:
639:
589:
533:
526:
471:
411:
305:to protect it from floods. But
27:
1646:Tuscarora Creek (West Virginia)
1427:South Fork Little Cacapon River
1420:North Fork Little Cacapon River
1180:
1164:
1149:
1125:
1110:
1075:
1051:
1042:
1033:
1000:
987:
942:
929:
920:
911:
898:
873:
141: • coordinates
78: • coordinates
1:
1225:New York: Random House, 2008.
842:
60:Physical characteristics
377:
180: • elevation
117: • elevation
7:
2603:South Fork Shenandoah River
2582:North Fork Shenandoah River
1117:"Pentagon Roadways Named".
1082:Berman, Mark (2007-11-22).
951:, 86 Ct. Cl. 53, 56 (1937).
880:Corps of Engineers, p. 533.
239:History of Boundary Channel
10:
2812:
2786:Rivers of Washington, D.C.
2479:South Branch Potomac River
2364:North Branch Potomac River
1704:Tuscarora Creek (Maryland)
1602:Little Conococheague Creek
1403:South Branch Potomac River
1396:North Branch Potomac River
381:
2796:Arlington Memorial Bridge
2651:
2640:
2577:
2564:
2485:
2472:
2370:
2357:
1974:
1961:
1699:Catoctin Creek (Maryland)
1694:Catoctin Creek (Virginia)
1672:
1659:
1390:
1377:
1295:
1252:NOAA Nautical Chart 12289
1186:Army Corps of Engineers.
745:
271:Arlington Memorial Bridge
245:Theodore Roosevelt Island
193:
188:
178:
139:
129:
125:
115:
76:
68:
64:
59:
51:
43:
38:
26:
21:
1223:The Pentagon: A History.
1030:. October 2, 1944, p. 7.
949:Severin v. United States
100:38.890111°N 77.063694°W
2706:Jennings Randolph Lake
2681:Breckenridge Reservoir
2325:Popes Creek (Virginia)
2285:Popes Creek (Maryland)
1546:Little Tonoloway Creek
339:
328:
2741:Stony River Reservoir
1848:Little Monocacy River
1689:Little Catoctin Creek
382:Further information:
334:
326:
163:38.87389°N 77.04806°W
105:38.890111; -77.063694
2701:Georgetown Reservoir
2696:Dalecarlia Reservoir
2646:Lakes and reservoirs
2300:Upper Machodoc Creek
2154:Little Hunting Creek
1877:Broad Run (Maryland)
1867:Broad Run (Virginia)
1414:Little Cacapon River
1365:subsubsubtributaries
1325:District of Columbia
1244:United States portal
1160:. 20 September 1949.
984:Accessed 2013-05-07.
882:Accessed 2013-05-07.
870:. November 13, 1968.
822:38.88995°N 77.0640°W
620:38.88085°N 77.0589°W
543:Washington Boulevard
184:0 ft (0 m)
121:0 ft (0 m)
55:District of Columbia
1968:Tidal Potomac River
1949:Little Falls Branch
1895:Little Seneca Creek
1666:Lower Potomac River
1607:Conococheague Creek
1440:Sideling Hill Creek
1384:Upper Potomac River
1358:(subsubtributaries)
1121:. 17 December 1943.
1089:The Washington Post
1028:The Washington Post
1024:The Washington Post
1020:The Washington Post
1016:The Washington Post
1012:The Washington Post
1008:The Washington Post
995:The Washington Post
937:The Washington Post
906:The Washington Post
893:The Washington Post
868:The Washington Post
818: /
777:38.8899°N 77.0641°W
773: /
726:38.8889°N 77.0641°W
722: /
700:Arlington Boulevard
673:38.8851°N 77.0616°W
669: /
616: /
570:38.8804°N 77.0573°W
566: /
507:38.8789°N 77.0530°W
503: /
451:38.8754°N 77.0471°W
447: /
357:The Washington Post
310:Brehon B. Somervell
189:Basin features
168:38.87389; -77.04806
159: /
96: /
2721:McMillan Reservoir
2716:Little Seneca Lake
2671:Lake Bernard Frank
2428:Little Wills Creek
2280:Port Tobacco River
2043:Washington Channel
1911:Great Seneca Creek
1200:Moore, John Ezra.
827:38.88995; -77.0640
797:Mount Vernon Trail
625:38.88085; -77.0589
424:Mount Vernon Trail
340:
329:
2768:
2767:
2764:
2763:
2736:Sleepy Creek Lake
2636:
2635:
2560:
2559:
2468:
2467:
2353:
2352:
2246:Chopawamsic Creek
1957:
1956:
1791:Big Hunting Creek
1776:Little Pipe Creek
1760:Double Pipe Creek
1655:
1654:
1465:Capon Springs Run
1435:Fifteenmile Creek
1174:October 19, 1938.
895:. April 15, 1925.
840:
839:
782:38.8899; -77.0641
731:38.8889; -77.0641
678:38.8851; -77.0616
575:38.8804; -77.0573
512:38.8789; -77.0530
456:38.8754; -77.0471
205:
204:
2803:
2726:Mount Storm Lake
2686:Brushy Fork Lake
2642:
2641:
2627:
2620:
2611:
2597:
2590:
2571:Shenandoah River
2566:
2565:
2526:
2512:
2505:
2498:
2474:
2473:
2460:Green Spring Run
2449:
2430:
2423:
2359:
2358:
2295:Piccowaxen Creek
2269:
2231:Chicamuxen Creek
2226:Mattawoman Creek
2210:
2203:
2196:
2172:
2149:Piscataway Creek
2128:
2102:
2095:
2093:Northeast Branch
2086:
2079:
2077:Northwest Branch
2072:
2065:
2058:
2028:Boundary Channel
2022:
1963:
1962:
1944:Cabin John Creek
1913:
1906:
1897:
1890:
1888:Dry Seneca Creek
1861:
1842:
1835:
1828:
1821:
1814:
1807:
1800:
1793:
1786:
1779:
1770:
1756:
1747:
1740:
1733:
1726:
1719:
1683:Shenandoah River
1661:
1660:
1648:
1641:
1634:
1627:
1615:
1598:
1591:
1584:
1562:
1548:
1524:
1520:Bearwallow Creek
1513:
1504:
1495:
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1474:
1467:
1460:
1453:
1429:
1422:
1379:
1378:
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1359:
1354:
1300:Cities and towns
1281:
1274:
1267:
1258:
1257:
1246:
1241:
1240:
1239:
1175:
1172:Washington Post.
1168:
1162:
1161:
1158:The Evening Star
1153:
1147:
1146:
1144:
1143:
1129:
1123:
1122:
1119:The Evening Star
1114:
1108:
1107:
1105:
1104:
1079:
1073:
1072:
1070:
1069:
1055:
1049:
1046:
1040:
1037:
1031:
1004:
998:
997:. July 22, 1983.
991:
985:
975:
966:
963:
952:
946:
940:
939:. June 14, 1977.
933:
927:
924:
918:
915:
909:
908:. April 2, 1925.
902:
896:
889:
883:
877:
871:
864:
858:
855:
834:
833:
832:
830:
829:
828:
823:
819:
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814:
811:
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475:
463:
462:
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457:
452:
448:
445:
444:
443:
440:
415:
391:
390:
287:Lincoln Memorial
276:Secretary of War
220:Washington, D.C.
208:Boundary Channel
198:
174:
173:
171:
170:
169:
164:
160:
157:
156:
155:
152:
118:
111:
110:
108:
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97:
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89:
79:
31:
22:Boundary Channel
19:
18:
2811:
2810:
2806:
2805:
2804:
2802:
2801:
2800:
2771:
2770:
2769:
2760:
2647:
2632:
2623:
2614:
2607:
2593:
2586:
2573:
2556:
2522:
2508:
2501:
2494:
2481:
2464:
2445:
2441:Patterson Creek
2426:
2419:
2366:
2349:
2335:Yeocomico River
2330:St. Marys River
2265:
2206:
2199:
2192:
2168:
2124:
2098:
2091:
2082:
2075:
2068:
2061:
2054:
2049:Anacostia River
2018:
1970:
1953:
1909:
1900:
1893:
1886:
1857:
1838:
1833:Ballenger Creek
1831:
1824:
1817:
1812:Linganore Creek
1810:
1803:
1798:Tuscarora Creek
1796:
1789:
1782:
1773:
1764:
1750:
1743:
1736:
1729:
1722:
1715:
1668:
1651:
1644:
1637:
1630:
1623:
1611:
1594:
1587:
1580:
1558:
1544:
1540:Tonoloway Creek
1535:Warm Spring Run
1516:
1507:
1501:Grassy Lick Run
1498:
1491:
1484:
1477:
1470:
1463:
1456:
1449:
1425:
1418:
1386:
1373:
1362:
1357:
1352:
1291:
1285:
1242:
1237:
1235:
1232:
1183:
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976:
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964:
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947:
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925:
921:
916:
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903:
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865:
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856:
849:
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764:
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724:
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713:
711:
709:
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677:
675:
671:
668:
663:
660:
658:
656:
655:
654:
647:Memorial Avenue
624:
622:
618:
615:
610:
607:
605:
603:
602:
601:
574:
572:
568:
565:
560:
557:
555:
553:
552:
551:
534:
511:
509:
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502:
497:
494:
492:
490:
489:
488:
455:
453:
449:
446:
441:
438:
436:
434:
433:
432:
421:
386:
380:
321:
319:Pentagon Lagoon
241:
233:Pentagon Lagoon
224:Columbia Island
194:
181:
167:
165:
161:
158:
153:
150:
148:
146:
145:
142:
135:Pentagon Lagoon
116:
104:
102:
98:
95:
90:
87:
85:
83:
82:
77:
34:
17:
12:
11:
5:
2809:
2799:
2798:
2793:
2788:
2783:
2766:
2765:
2762:
2761:
2759:
2758:
2753:
2748:
2743:
2738:
2733:
2728:
2723:
2718:
2713:
2708:
2703:
2698:
2693:
2688:
2683:
2678:
2673:
2668:
2666:Lake Artemesia
2663:
2658:
2652:
2649:
2648:
2638:
2637:
2634:
2633:
2631:
2630:
2629:
2628:
2621:
2612:
2600:
2599:
2598:
2591:
2578:
2575:
2574:
2562:
2561:
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2549:
2544:
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2534:
2529:
2528:
2527:
2515:
2514:
2513:
2506:
2499:
2486:
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2470:
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2438:
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2432:
2431:
2424:
2412:
2407:
2402:
2397:
2392:
2387:
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2371:
2368:
2367:
2355:
2354:
2351:
2350:
2348:
2347:
2342:
2337:
2332:
2327:
2322:
2317:
2312:
2310:Wicomico River
2307:
2302:
2297:
2292:
2287:
2282:
2277:
2275:Nanjemoy Creek
2272:
2271:
2270:
2267:Accokeek Creek
2258:
2253:
2248:
2243:
2238:
2236:Quantico Creek
2233:
2228:
2223:
2218:
2213:
2212:
2211:
2204:
2197:
2188:Occoquan River
2185:
2183:Pomonkey Creek
2180:
2175:
2174:
2173:
2164:Accotink Creek
2161:
2156:
2151:
2146:
2141:
2136:
2131:
2130:
2129:
2117:
2112:
2107:
2106:
2105:
2104:
2103:
2089:
2088:
2087:
2073:
2066:
2059:
2045:
2040:
2035:
2030:
2025:
2024:
2023:
2011:
2009:Foundry Branch
2006:
2001:
1996:
1991:
1986:
1981:
1975:
1972:
1971:
1959:
1958:
1955:
1954:
1952:
1951:
1946:
1941:
1936:
1931:
1926:
1921:
1916:
1915:
1914:
1907:
1898:
1891:
1879:
1874:
1869:
1864:
1863:
1862:
1850:
1845:
1844:
1843:
1836:
1829:
1822:
1815:
1808:
1801:
1794:
1787:
1780:
1771:
1767:Big Pipe Creek
1762:
1757:
1748:
1741:
1734:
1727:
1720:
1710:Monocacy River
1706:
1701:
1696:
1691:
1686:
1679:
1677:Antietam Creek
1673:
1670:
1669:
1657:
1656:
1653:
1652:
1650:
1649:
1642:
1635:
1628:
1621:
1616:
1609:
1604:
1599:
1596:Tilhance Creek
1592:
1585:
1578:
1573:
1568:
1563:
1556:
1551:
1550:
1549:
1537:
1532:
1527:
1526:
1525:
1514:
1510:Tearcoat Creek
1505:
1496:
1489:
1482:
1475:
1468:
1461:
1454:
1442:
1437:
1432:
1431:
1430:
1423:
1411:
1406:
1399:
1391:
1388:
1387:
1375:
1374:
1372:
1371:
1370:
1369:
1360:
1355:
1353:subtributaries
1347:
1342:
1337:
1332:
1327:
1322:
1317:
1312:
1307:
1302:
1296:
1293:
1292:
1284:
1283:
1276:
1269:
1261:
1255:
1254:
1248:
1247:
1231:
1230:External links
1228:
1227:
1226:
1221:Vogel, Steve.
1219:
1212:
1205:
1198:
1191:
1182:
1179:
1177:
1176:
1163:
1148:
1124:
1109:
1074:
1050:
1041:
1032:
999:
986:
967:
965:Vogel, p. 133.
953:
941:
928:
919:
910:
897:
884:
872:
859:
846:
844:
841:
838:
837:
835:
801:
799:
793:
792:
790:
756:
754:
751:
743:
742:
739:
705:
702:
697:
689:
688:
686:
652:
649:
644:
636:
635:
633:
599:
597:
594:
586:
585:
583:
549:
546:
531:
523:
522:
520:
486:
484:
479:Footbridge to
476:
468:
467:
464:
430:
427:
416:
408:
407:
404:
401:
398:
395:
379:
376:
320:
317:
283:Highway Bridge
240:
237:
203:
202:
199:
191:
190:
186:
185:
182:
179:
176:
175:
143:
140:
137:
136:
133:
127:
126:
123:
122:
119:
113:
112:
80:
74:
73:
70:
66:
65:
62:
61:
57:
56:
53:
49:
48:
45:
41:
40:
36:
35:
32:
24:
23:
15:
9:
6:
4:
3:
2:
2808:
2797:
2794:
2792:
2789:
2787:
2784:
2782:
2781:Potomac River
2779:
2778:
2776:
2757:
2754:
2752:
2749:
2747:
2744:
2742:
2739:
2737:
2734:
2732:
2731:Lake Needwood
2729:
2727:
2724:
2722:
2719:
2717:
2714:
2712:
2709:
2707:
2704:
2702:
2699:
2697:
2694:
2692:
2689:
2687:
2684:
2682:
2679:
2677:
2676:Lake Braddock
2674:
2672:
2669:
2667:
2664:
2662:
2659:
2657:
2656:Lake Accotink
2654:
2653:
2650:
2643:
2639:
2626:
2622:
2618:
2613:
2610:
2606:
2605:
2604:
2601:
2596:
2592:
2589:
2585:
2584:
2583:
2580:
2579:
2576:
2572:
2567:
2563:
2553:
2552:Buffalo Creek
2550:
2548:
2545:
2543:
2540:
2538:
2535:
2533:
2530:
2525:
2521:
2520:
2519:
2516:
2511:
2507:
2504:
2500:
2497:
2493:
2492:
2491:
2488:
2487:
2484:
2480:
2475:
2471:
2461:
2458:
2456:
2453:
2448:
2444:
2443:
2442:
2439:
2437:
2434:
2429:
2425:
2422:
2418:
2417:
2416:
2413:
2411:
2408:
2406:
2405:Limestone Run
2403:
2401:
2398:
2396:
2393:
2391:
2390:Georges Creek
2388:
2386:
2383:
2381:
2378:
2376:
2373:
2372:
2369:
2365:
2360:
2356:
2346:
2343:
2341:
2338:
2336:
2333:
2331:
2328:
2326:
2323:
2321:
2318:
2316:
2313:
2311:
2308:
2306:
2305:Cuckold Creek
2303:
2301:
2298:
2296:
2293:
2291:
2288:
2286:
2283:
2281:
2278:
2276:
2273:
2268:
2264:
2263:
2262:
2261:Potomac Creek
2259:
2257:
2254:
2252:
2249:
2247:
2244:
2242:
2239:
2237:
2234:
2232:
2229:
2227:
2224:
2222:
2221:Powells Creek
2219:
2217:
2216:Neabsco Creek
2214:
2209:
2205:
2202:
2198:
2195:
2191:
2190:
2189:
2186:
2184:
2181:
2179:
2176:
2171:
2167:
2166:
2165:
2162:
2160:
2157:
2155:
2152:
2150:
2147:
2145:
2142:
2140:
2137:
2135:
2132:
2127:
2123:
2122:
2121:
2120:Hunting Creek
2118:
2116:
2113:
2111:
2110:Four Mile Run
2108:
2101:
2097:
2096:
2094:
2090:
2085:
2081:
2080:
2078:
2074:
2071:
2067:
2064:
2060:
2057:
2053:
2052:
2051:
2050:
2046:
2044:
2041:
2039:
2036:
2034:
2031:
2029:
2026:
2021:
2017:
2016:
2015:
2012:
2010:
2007:
2005:
2002:
2000:
1997:
1995:
1994:Maddox Branch
1992:
1990:
1989:Donaldson Run
1987:
1985:
1982:
1980:
1977:
1976:
1973:
1969:
1964:
1960:
1950:
1947:
1945:
1942:
1940:
1937:
1935:
1932:
1930:
1929:Difficult Run
1927:
1925:
1922:
1920:
1917:
1912:
1908:
1904:
1903:Tenmile Creek
1899:
1896:
1892:
1889:
1885:
1884:
1883:
1880:
1878:
1875:
1873:
1872:Sugarland Run
1870:
1868:
1865:
1860:
1856:
1855:
1854:
1851:
1849:
1846:
1841:
1840:Bennett Creek
1837:
1834:
1830:
1827:
1823:
1820:
1816:
1813:
1809:
1806:
1805:Carroll Creek
1802:
1799:
1795:
1792:
1788:
1785:
1781:
1777:
1772:
1768:
1763:
1761:
1758:
1754:
1749:
1746:
1742:
1739:
1735:
1732:
1731:Alloway Creek
1728:
1725:
1721:
1718:
1714:
1713:
1712:
1711:
1707:
1705:
1702:
1700:
1697:
1695:
1692:
1690:
1687:
1685:
1684:
1680:
1678:
1675:
1674:
1671:
1667:
1662:
1658:
1647:
1643:
1640:
1636:
1633:
1629:
1626:
1622:
1620:
1619:Opequon Creek
1617:
1614:
1610:
1608:
1605:
1603:
1600:
1597:
1593:
1590:
1586:
1583:
1579:
1577:
1574:
1572:
1569:
1567:
1566:Licking Creek
1564:
1561:
1560:Meadow Branch
1557:
1555:
1552:
1547:
1543:
1542:
1541:
1538:
1536:
1533:
1531:
1530:Sir Johns Run
1528:
1522:
1521:
1515:
1511:
1506:
1502:
1497:
1494:
1490:
1487:
1483:
1480:
1476:
1473:
1469:
1466:
1462:
1459:
1455:
1452:
1448:
1447:
1446:
1445:Cacapon River
1443:
1441:
1438:
1436:
1433:
1428:
1424:
1421:
1417:
1416:
1415:
1412:
1410:
1407:
1405:
1404:
1400:
1398:
1397:
1393:
1392:
1389:
1385:
1380:
1376:
1366:
1361:
1356:
1351:
1350:
1348:
1346:
1345:West Virginia
1343:
1341:
1338:
1336:
1333:
1331:
1328:
1326:
1323:
1321:
1320:Variant names
1318:
1316:
1313:
1311:
1308:
1306:
1303:
1301:
1298:
1297:
1294:
1289:
1288:Potomac River
1282:
1277:
1275:
1270:
1268:
1263:
1262:
1259:
1253:
1250:
1249:
1245:
1234:
1224:
1220:
1217:
1213:
1210:
1206:
1203:
1199:
1196:
1192:
1189:
1185:
1184:
1173:
1167:
1159:
1152:
1138:
1134:
1128:
1120:
1113:
1099:
1095:
1091:
1090:
1085:
1078:
1064:
1060:
1054:
1045:
1036:
1029:
1025:
1021:
1017:
1013:
1009:
1003:
996:
990:
983:
981:
974:
972:
962:
960:
958:
950:
945:
938:
932:
926:Moore, p. 91.
923:
914:
907:
901:
894:
888:
881:
876:
869:
863:
854:
852:
847:
836:
831:
802:
800:
798:
795:
794:
791:
786:
757:
755:
752:
749:
744:
740:
735:
706:
703:
701:
698:
695:
691:
690:
687:
682:
653:
650:
648:
645:
642:
638:
637:
634:
629:
600:
598:
595:
592:
588:
587:
584:
579:
550:
547:
544:
540:
532:
529:
525:
524:
521:
516:
487:
485:
483:
482:
477:
474:
470:
469:
465:
460:
431:
428:
426:
425:
420:
417:
414:
410:
409:
405:
402:
399:
396:
393:
392:
389:
385:
375:
371:
368:
364:
359:
358:
352:
349:
343:
337:
333:
325:
316:
313:
311:
308:
304:
299:
294:
290:
288:
284:
280:
279:John W. Weeks
277:
272:
267:
264:
261:
257:
252:
250:
246:
236:
234:
229:
225:
221:
217:
216:Potomac River
213:
209:
201:Potomac River
200:
197:
192:
187:
183:
177:
172:
144:
138:
134:
132:
128:
124:
120:
114:
109:
81:
75:
72:Potomac River
71:
67:
63:
58:
54:
50:
47:United States
46:
42:
37:
30:
25:
20:
2711:Kingman Lake
2617:Middle River
2532:Lunice Creek
2524:Kettle Creek
2510:Seneca Creek
2436:Evitts Creek
2385:Savage River
2320:Mattox Creek
2315:Monroe Creek
2241:Little Creek
2178:Pohick Creek
2139:Henson Creek
2100:Paint Branch
2063:Watts Branch
2047:
2027:
2020:Piney Branch
1924:Watts Branch
1919:Muddy Branch
1882:Seneca Creek
1859:Little River
1819:Israel Creek
1753:Middle Creek
1708:
1681:
1639:Middle Creek
1625:Abrams Creek
1589:Isaacs Creek
1554:Sleepy Creek
1518:
1401:
1394:
1364:
1335:Pennsylvania
1222:
1215:
1208:
1201:
1194:
1187:
1181:Bibliography
1171:
1166:
1157:
1151:
1140:. Retrieved
1136:
1127:
1118:
1112:
1101:. Retrieved
1087:
1077:
1066:. Retrieved
1062:
1053:
1044:
1035:
1027:
1023:
1019:
1015:
1011:
1007:
1002:
994:
989:
979:
948:
944:
936:
931:
922:
913:
905:
900:
892:
887:
875:
867:
862:
796:
478:
422:
403:Coordinates
387:
372:
370:until 1946.
355:
353:
344:
341:
314:
298:The Pentagon
295:
291:
268:
265:
253:
242:
232:
207:
206:
196:River system
88:38°53′24.4″N
2756:Warden Lake
2746:Tidal Basin
2625:South River
2609:North River
2595:Smith Creek
2588:Cedar Creek
2496:Laurel Fork
2421:Brush Creek
2415:Wills Creek
2410:Warrior Run
2380:Abram Creek
2375:Stony River
2290:Gambo Creek
2256:Aquia Creek
2170:Daniels Run
2159:Dogue Creek
2134:Broad Creek
2126:Cameron Run
2084:Sligo Creek
2056:Pope Branch
2033:Tiber Creek
1984:Gulf Branch
1853:Goose Creek
1784:Owens Creek
1738:Piney Creek
1724:Marsh Creek
1582:Hogue Creek
1493:North River
1486:Mill Branch
1479:Edwards Run
1472:Dillons Run
1315:Tributaries
825: /
780: /
729: /
676: /
623: /
573: /
510: /
454: /
166: /
103: /
91:77°3′49.3″W
2775:Categories
2751:Trout Pond
2691:Burke Lake
2542:Mill Creek
2503:Mill Creek
2447:Mill Creek
2395:Laurel Run
2345:Hull Creek
2340:Coan River
2251:Tank Creek
2144:Swan Creek
2115:Oxon Creek
2070:Hickey Run
2014:Rock Creek
1979:Pimmit Run
1826:Bush Creek
1745:Toms Creek
1717:Rock Creek
1632:Mill Creek
1613:Back Creek
1576:Back Creek
1571:Cherry Run
1451:Lost River
1409:Town Creek
1142:2020-12-24
1103:2020-12-24
1068:2020-12-24
843:References
813:77°03′50″W
810:38°53′24″N
768:77°03′51″W
765:38°53′24″N
717:77°03′51″W
714:38°53′20″N
664:77°03′42″W
661:38°53′06″N
611:77°03′32″W
608:38°52′51″N
561:77°03′26″W
558:38°52′49″N
539:SR 27
498:77°03′11″W
495:38°52′44″N
442:77°02′50″W
439:38°52′31″N
151:38°52′26″N
2661:Lake Anne
2400:New Creek
2208:Cedar Run
2201:Broad Run
2038:Rocky Run
2004:Spout Run
1999:Windy Run
1458:Trout Run
1098:0190-8286
397:Crossing
378:Crossings
367:houseboat
154:77°2′53″W
2537:Mill Run
2455:Dans Run
2194:Bull Run
1939:Dead Run
1934:Rock Run
1340:Virginia
1330:Maryland
285:and the
260:Dredging
228:Virginia
214:off the
39:Location
2547:Big Run
1310:Islands
1305:Bridges
400:Opened
307:General
249:wetland
212:channel
44:Country
1290:system
1096:
406:Notes
394:Image
336:Corona
69:Source
704:1949
651:1932
548:1942
429:1932
363:raped
303:levee
210:is a
131:Mouth
52:State
1094:ISSN
348:dike
218:in
2777::
1135:.
1092:.
1086:.
1061:.
970:^
956:^
850:^
545:)
235:.
2619:)
2615:(
1905:)
1901:(
1778:)
1774:(
1769:)
1765:(
1755:)
1751:(
1523:)
1517:(
1512:)
1508:(
1503:)
1499:(
1367:)
1363:(
1280:e
1273:t
1266:v
1145:.
1106:.
1071:.
541:(
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