1965:
750:
2085:
1996:
626:
1335:
1779:
1647:
684:
560:
1872:
971:
1242:
492:
1436:
591:
2359:
847:
22:
1713:
1370:
719:
1810:
1149:
781:
1678:
1056:
426:
1903:
1304:
878:
527:
1748:
812:
1547:
34:
1401:
1273:
1118:
1841:
1087:
2050:
1467:
1180:
1934:
909:
45:
457:
391:
1211:
940:
2116:
1612:
1025:
285:
Participation in the NNL Program carries no requirements regarding public access. The NNL registry includes many sites of national significance that are open for public tours, but others are not. Since many NNLs are located on federal and state property, permission to visit is often unnecessary. Some
136:
of 1966. Thus, the designation of a
National Natural Landmark presently constitutes only an agreement with the owner to preserve, as far as possible, the significant natural values of the site or area. Administration and preservation of National Natural Landmarks is solely the owner's responsibility.
306:
Participation in the NNL Program involves a voluntary commitment on the part of the landowner(s) to retain the integrity of their NNL property as it was when designated. If "major" habitat or landscape destruction is planned, participation in the NNL Program by a landowner would be disingenuous and
176:
Prospective sites for NNL designation are terrestrial and aquatic ecosystems; geological features, exposures, and landforms that record active geological processes or portions of earth history; and fossil evidence of biological evolution. Each major natural history "theme" can be further subdivided
97:
and ecological history of the United States. It also hopes to strengthen the public's appreciation of the country's natural heritage. As of
January 2021, 602 sites have been added to the National Registry of Natural Landmarks. The registry includes nationally significant geological and ecological
149:
after an in-depth scientific study of a potential site. All new designations must have owner concurrence. The selection process is rigorous: to be considered for NNL status, a site must be one of the best examples of a natural region's characteristic biotic or geologic features. Since the
209:
The NNL program does not require designated properties to be owned by public entities. Lands under almost all forms of ownership or administration have been designated—federal, state, local, municipal, and private. Federal lands with NNLs include those administered by the
277:, commercial interests, and private individuals. Approximately 52% of NNLs are administered by public agencies, more than 30% are entirely privately owned, and the remaining 18% are owned or administered by a mixture of public agencies and private owners.
302:
NNL designation is an agreement between the property owner and the federal government. NNL designation does not change ownership of the property nor induce any encumbrances on the property. NNL status does not transfer with changes in ownership.
1505:
2008:
310:
The federal action of designation imposes no new land use restrictions that were not in effect before the designation. It is conceivable that state or local governments of their own volition could initiate regulations or
286:
private properties may be open to public visitation or just require permission from the site manager. On the other hand, some NNL private landowners desire no visitors whatsoever and might even prosecute
125:
is not a goal of this program. National
Natural Landmarks are nationally significant sites owned by a variety of land stewards, and their participation in this federal program is voluntary.
157:
After landowners are notified that the site is being considered for NNL status, a detailed onsite evaluation is conducted by scientists other than those who conducted the inventory.
177:
into various sub-themes. For example, sub-themes suggested in 1972 for the overall theme "Lakes and ponds" included large deep lakes, large shallow lakes, lakes of complex shape,
2763:
132:
of August 21, 1935 (49 Stat. 666, 16 U.S.C. 641); the program is governed by federal regulations. The NNL Program does not have the protection features of
Section 106 of the
150:
establishment of the NNL program, a multi-step process has been used to designate a site for NNL status. Since 1970, the following steps have constituted the process.
315:
that might apply to an NNL. However, as of 2005 no examples of such a situation have been identified. Some states require planners to ascertain the location of NNLs.
2864:
2685:
2670:
2607:
2572:
1915:
1725:
1448:
438:
2647:
2552:
2512:
2031:
1316:
1068:
2612:
2602:
2597:
2577:
1760:
1690:
1624:
1479:
121:
administers the NNL Program and if requested, assists NNL owners and managers with the conservation of these important sites. Land acquisition by the
2680:
2527:
2442:
1659:
1161:
603:
2642:
2562:
2557:
2432:
1977:
1382:
1347:
539:
2833:
2652:
2617:
2522:
2497:
2062:
1791:
1130:
983:
2637:
2587:
2567:
2542:
2532:
2517:
2507:
2492:
2472:
2447:
2437:
2427:
1946:
1559:
1413:
1254:
1192:
1099:
1037:
952:
824:
638:
572:
504:
2879:
2657:
2632:
2537:
2477:
2457:
2452:
2422:
2412:
2097:
1884:
1223:
859:
696:
661:
469:
368:
2718:
2592:
2547:
2487:
2462:
2417:
1589:
1285:
921:
762:
403:
2788:
2622:
2502:
2467:
1822:
1006:
793:
2675:
2627:
2582:
2482:
1853:
1528:
890:
731:
1964:
166:
The site is reviewed by the
Secretary of the Interior's National Park Advisory Board to determine that the site qualifies as an NNL.
2391:
2869:
227:
219:
146:
84:
2828:
2758:
250:
239:
2874:
2818:
2727:
2743:
223:
2205:
133:
2773:
2711:
2748:
253:
or tribes. NNLs also have been designated on state lands that cover a variety of types and management, such as
2336:
749:
2384:
2220:
215:
111:
2704:
2738:
2130:
2084:
1995:
235:
2768:
1334:
75:. It is the only national natural areas program that identifies and recognizes the best examples of
2843:
2803:
2783:
2369:
2377:
2235:
2175:
1778:
323:
Listed by state or territory in alphabetical order. As of
January 2021, there were 602 listings.
231:
625:
2696:
683:
154:
A natural area inventory of a natural region is completed to identify the most promising sites.
83:
features in both public and private ownership. The program was established on May 18, 1962, by
2298:"High Plateaus, Smelly Caverns, and Coastal Dunes, Meet the Nation's Newest Natural Landmarks"
1646:
559:
93:
The program aims to encourage and support voluntary preservation of sites that illustrate the
2838:
2823:
2808:
211:
172:
Landowners are notified a third time informing them that the site has been designated an NNL.
118:
2160:
1871:
178:
970:
8:
1241:
2358:
491:
189:, dune lakes, sphagnum-bog lakes, lakes fed by thermal streams, tundra lakes and ponds,
2753:
590:
243:
129:
122:
48:
2364:
846:
2798:
2352:
2250:
2190:
1712:
21:
2321:
201:
lakes, unusually productive lakes, and lakes of high productivity and high clarity.
169:
The findings are provided to the
Secretary of the Interior who approves or declines.
128:
The legislative authority for the
National Natural Landmarks Program stems from the
67:) Program recognizes and encourages the conservation of outstanding examples of the
2793:
2297:
1435:
287:
718:
1809:
1148:
291:
266:
68:
26:
160:
The evaluation report is peer-reviewed by other experts to assure its soundness.
2813:
780:
99:
1369:
2858:
1677:
269:, and preserve. Private lands with NNLs include those owned by universities,
87:
72:
2272:
1902:
1055:
425:
294:, fragile or dangerous resources, and desire for solitude or no publicity.
52:
1747:
1303:
877:
811:
262:
182:
107:
1546:
274:
186:
80:
76:
1400:
1272:
1117:
526:
137:
Either party may terminate the agreement after they notify the other.
33:
1840:
1086:
2049:
290:. The reasons for this viewpoint vary: potential property damage or
2399:
1933:
1466:
1179:
198:
37:
908:
44:
94:
2726:
456:
390:
312:
270:
254:
2148:
This step was dropped after 1979 but was reinstituted in 1999.
1210:
163:
The report is reviewed further by
National Park Service staff.
2115:
1611:
939:
194:
190:
2322:"National Natural Landmarks Program; Final Rule 36 CFR 62,"
1024:
258:
103:
2327:
Vol. 64, No. 91, Wednesday, May 12, 1999, pp. 25708-25723.
2078:
2073:
1741:
1736:
1706:
1701:
1640:
1635:
1605:
1600:
1575:
1570:
1429:
1424:
1363:
1358:
840:
835:
712:
707:
677:
672:
619:
614:
550:
520:
515:
485:
480:
419:
414:
384:
379:
2337:
Roscommon Red Pines, Department of
Natural Resources.
273:, scientific societies, conservation organizations,
2856:
2865:National Natural Landmarks of the United States
249:Some NNL has been designated on lands held by
2712:
2385:
2728:Federal protected areas in the United States
2292:
2290:
2231:
2229:
2178:shared between Connecticut and Massachusetts
2719:
2705:
2392:
2378:
2357:
2287:
2226:
2223:shared between Minnesota and South Dakota
2208:shared between Maryland and West Virginia
2246:
2244:
2171:
2169:
43:
32:
20:
2216:
2214:
2201:
2199:
85:United States Secretary of the Interior
2857:
2238:shared between New Jersey and New York
2156:
2154:
2700:
2373:
2241:
2186:
2184:
2166:
2880:Protected areas of the United States
2365:National Natural Landmarks Directory
2273:"National Natural Landmarks Program"
2211:
2196:
318:
2253:shared between Vermont and New York
2193:shared between Indiana and Kentucky
2163:shared between Colorado and Wyoming
2151:
145:The NNL designation is made by the
29:with National Natural Landmark sign
13:
2206:Cranesville Swamp Nature Sanctuary
2181:
297:
134:National Historic Preservation Act
14:
2891:
2344:
16:Natural areas program in the U.S.
2114:
2083:
2048:
1994:
1963:
1932:
1901:
1870:
1839:
1808:
1777:
1746:
1711:
1676:
1645:
1610:
1545:
1465:
1434:
1399:
1368:
1333:
1302:
1271:
1240:
1209:
1178:
1147:
1116:
1085:
1054:
1023:
969:
938:
907:
876:
845:
810:
779:
748:
717:
682:
624:
589:
558:
525:
490:
455:
424:
389:
325:
2870:Landmarks in the United States
2330:
2315:
2265:
2142:
140:
1:
2259:
2221:Ancient River Warren Channel
2090:
2055:
2024:
2001:
1970:
1939:
1908:
1877:
1846:
1815:
1784:
1753:
1718:
1683:
1652:
1617:
1582:
1552:
1521:
1498:
1472:
1441:
1406:
1375:
1340:
1309:
1278:
1247:
1216:
1185:
1154:
1123:
1092:
1061:
1030:
999:
976:
945:
914:
883:
852:
817:
786:
755:
724:
689:
654:
631:
596:
565:
532:
497:
462:
431:
396:
361:
204:
7:
2875:National Park Service areas
2744:Estuarine Research Reserves
2124:
10:
2896:
2401:National Natural Landmarks
2131:National Historic Landmark
61:National Natural Landmarks
2734:
2666:
2408:
280:
228:Fish and Wildlife Service
220:Bureau of Land Management
147:Secretary of the Interior
40:National Natural Landmark
2784:Outstanding Natural Area
2764:Lakeshores and seashores
2136:
1506:Northern Mariana Islands
2275:. National Park Service
2236:Palisades of the Hudson
240:Army Corps of Engineers
98:features in 48 states,
2839:Wilderness Study Areas
2829:Wild and Scenic Rivers
2809:Research Natural Areas
342:Number, non-duplicated
56:
41:
30:
2302:National Park Service
224:Bureau of Reclamation
212:National Park Service
119:National Park Service
55:near Valley Green Inn
47:
36:
24:
2403:in the United States
2176:Bartholomew's Cobble
337:Number of landmarks
216:U.S. Forest Service
112:U.S. Virgin Islands
2769:Marine Sanctuaries
2739:Conservation Areas
332:State or territory
130:Historic Sites Act
123:federal government
57:
49:Wissahickon Valley
42:
31:
2852:
2851:
2779:Natural Landmarks
2694:
2693:
2251:Chazy Fossil Reef
2122:
2121:
2094:
2059:
2028:
2005:
1974:
1943:
1912:
1881:
1850:
1819:
1788:
1757:
1722:
1687:
1656:
1621:
1586:
1556:
1525:
1502:
1476:
1445:
1410:
1379:
1344:
1313:
1282:
1251:
1220:
1189:
1158:
1127:
1096:
1065:
1034:
1003:
980:
949:
918:
887:
856:
821:
790:
759:
728:
693:
658:
635:
600:
569:
536:
501:
466:
435:
400:
365:
347:Earliest declared
319:List of landmarks
2887:
2844:Wildlife Refuges
2834:Wilderness Areas
2804:Recreation Areas
2759:Historical parks
2721:
2714:
2707:
2698:
2697:
2394:
2387:
2380:
2371:
2370:
2361:
2356:
2355:
2353:Official website
2339:
2334:
2328:
2325:Federal Register
2319:
2313:
2312:
2310:
2308:
2294:
2285:
2284:
2282:
2280:
2269:
2254:
2248:
2239:
2233:
2224:
2218:
2209:
2203:
2194:
2188:
2179:
2173:
2164:
2158:
2149:
2146:
2118:
2092:
2087:
2080:
2075:
2057:
2052:
2026:
2003:
1998:
1972:
1967:
1941:
1936:
1910:
1905:
1879:
1874:
1848:
1843:
1817:
1812:
1786:
1781:
1755:
1750:
1743:
1738:
1720:
1715:
1708:
1703:
1685:
1680:
1654:
1649:
1642:
1637:
1619:
1614:
1607:
1602:
1584:
1577:
1572:
1554:
1549:
1523:
1500:
1474:
1469:
1443:
1438:
1431:
1426:
1408:
1403:
1377:
1372:
1365:
1360:
1342:
1337:
1311:
1306:
1280:
1275:
1249:
1244:
1218:
1213:
1187:
1182:
1156:
1151:
1125:
1120:
1094:
1089:
1063:
1058:
1032:
1027:
1001:
978:
973:
947:
942:
916:
911:
885:
880:
854:
849:
842:
837:
819:
814:
788:
783:
757:
752:
726:
721:
714:
709:
691:
686:
679:
674:
656:
633:
628:
621:
616:
598:
593:
567:
562:
552:
534:
529:
522:
517:
499:
494:
487:
482:
464:
459:
433:
428:
421:
416:
398:
393:
386:
381:
363:
326:
251:Native Americans
2895:
2894:
2890:
2889:
2888:
2886:
2885:
2884:
2855:
2854:
2853:
2848:
2730:
2725:
2695:
2690:
2662:
2404:
2398:
2351:
2350:
2347:
2342:
2335:
2331:
2320:
2316:
2306:
2304:
2296:
2295:
2288:
2278:
2276:
2271:
2270:
2266:
2262:
2257:
2249:
2242:
2234:
2227:
2219:
2212:
2204:
2197:
2191:Ohio Coral Reef
2189:
2182:
2174:
2167:
2159:
2152:
2147:
2143:
2139:
2127:
2009:Washington D.C.
352:Latest declared
321:
300:
298:Property status
283:
267:recreation area
207:
143:
69:natural history
27:Trona Pinnacles
17:
12:
11:
5:
2893:
2883:
2882:
2877:
2872:
2867:
2850:
2849:
2847:
2846:
2841:
2836:
2831:
2826:
2821:
2816:
2811:
2806:
2801:
2796:
2791:
2786:
2781:
2776:
2771:
2766:
2761:
2756:
2751:
2746:
2741:
2735:
2732:
2731:
2724:
2723:
2716:
2709:
2701:
2692:
2691:
2689:
2688:
2686:Virgin Islands
2683:
2678:
2673:
2671:American Samoa
2667:
2664:
2663:
2661:
2660:
2655:
2650:
2645:
2640:
2635:
2630:
2625:
2620:
2615:
2610:
2608:South Carolina
2605:
2600:
2595:
2590:
2585:
2580:
2575:
2573:North Carolina
2570:
2565:
2560:
2555:
2550:
2545:
2540:
2535:
2530:
2525:
2520:
2515:
2510:
2505:
2500:
2495:
2490:
2485:
2480:
2475:
2470:
2465:
2460:
2455:
2450:
2445:
2440:
2435:
2430:
2425:
2420:
2415:
2409:
2406:
2405:
2397:
2396:
2389:
2382:
2374:
2368:
2367:
2362:
2346:
2345:External links
2343:
2341:
2340:
2329:
2314:
2286:
2263:
2261:
2258:
2256:
2255:
2240:
2225:
2210:
2195:
2180:
2165:
2150:
2140:
2138:
2135:
2134:
2133:
2126:
2123:
2120:
2119:
2112:
2111:December 1984
2109:
2106:
2103:
2100:
2095:
2089:
2088:
2081:
2076:
2071:
2068:
2065:
2060:
2054:
2053:
2046:
2043:
2040:
2037:
2034:
2029:
2023:
2022:
2020:
2018:
2016:
2014:
2011:
2006:
2000:
1999:
1992:
1989:
1986:
1983:
1980:
1975:
1969:
1968:
1961:
1958:
1955:
1952:
1949:
1944:
1938:
1937:
1930:
1927:
1924:
1921:
1918:
1916:Virgin Islands
1913:
1907:
1906:
1899:
1896:
1893:
1890:
1887:
1882:
1876:
1875:
1868:
1865:
1862:
1859:
1856:
1851:
1845:
1844:
1837:
1834:
1831:
1828:
1825:
1820:
1814:
1813:
1806:
1803:
1800:
1797:
1794:
1789:
1783:
1782:
1775:
1772:
1769:
1766:
1763:
1758:
1752:
1751:
1744:
1739:
1734:
1731:
1728:
1726:South Carolina
1723:
1717:
1716:
1709:
1704:
1699:
1696:
1693:
1688:
1682:
1681:
1674:
1671:
1668:
1665:
1662:
1657:
1651:
1650:
1643:
1638:
1633:
1630:
1627:
1622:
1616:
1615:
1608:
1603:
1598:
1595:
1592:
1587:
1581:
1580:
1578:
1573:
1568:
1565:
1562:
1557:
1551:
1550:
1543:
1540:
1537:
1534:
1531:
1526:
1520:
1519:
1517:
1515:
1513:
1511:
1508:
1503:
1497:
1496:
1494:
1491:
1488:
1485:
1482:
1477:
1471:
1470:
1463:
1460:
1457:
1454:
1451:
1449:North Carolina
1446:
1440:
1439:
1432:
1427:
1422:
1419:
1416:
1411:
1405:
1404:
1397:
1394:
1391:
1388:
1385:
1380:
1374:
1373:
1366:
1361:
1356:
1353:
1350:
1345:
1339:
1338:
1331:
1328:
1325:
1322:
1319:
1314:
1308:
1307:
1300:
1297:
1294:
1291:
1288:
1283:
1277:
1276:
1269:
1266:
1263:
1260:
1257:
1252:
1246:
1245:
1238:
1235:
1232:
1229:
1226:
1221:
1215:
1214:
1207:
1204:
1201:
1198:
1195:
1190:
1184:
1183:
1176:
1173:
1170:
1167:
1164:
1159:
1153:
1152:
1145:
1142:
1139:
1136:
1133:
1128:
1122:
1121:
1114:
1111:
1108:
1105:
1102:
1097:
1091:
1090:
1083:
1082:November 1987
1080:
1077:
1074:
1071:
1066:
1060:
1059:
1052:
1049:
1046:
1043:
1040:
1035:
1029:
1028:
1021:
1018:
1015:
1012:
1009:
1004:
998:
997:
995:
993:
991:
989:
986:
981:
975:
974:
967:
964:
961:
958:
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950:
944:
943:
936:
933:
930:
927:
924:
919:
913:
912:
905:
902:
899:
896:
893:
888:
882:
881:
874:
871:
868:
865:
862:
857:
851:
850:
843:
838:
833:
830:
827:
822:
816:
815:
808:
805:
802:
799:
796:
791:
785:
784:
777:
776:December 1972
774:
771:
768:
765:
760:
754:
753:
746:
743:
740:
737:
734:
729:
723:
722:
715:
710:
705:
702:
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694:
688:
687:
680:
675:
670:
667:
664:
659:
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644:
641:
636:
630:
629:
622:
617:
612:
609:
606:
601:
595:
594:
587:
584:
581:
578:
575:
570:
564:
563:
556:
553:
548:
545:
542:
537:
531:
530:
523:
518:
513:
510:
507:
502:
496:
495:
488:
483:
478:
475:
472:
467:
461:
460:
453:
450:
447:
444:
441:
439:American Samoa
436:
430:
429:
422:
417:
412:
409:
406:
401:
395:
394:
387:
382:
377:
374:
371:
366:
360:
359:
354:
349:
344:
339:
334:
329:
320:
317:
299:
296:
282:
279:
246:, and others.
206:
203:
185:and potholes,
174:
173:
170:
167:
164:
161:
158:
155:
142:
139:
100:American Samoa
15:
9:
6:
4:
3:
2:
2892:
2881:
2878:
2876:
2873:
2871:
2868:
2866:
2863:
2862:
2860:
2845:
2842:
2840:
2837:
2835:
2832:
2830:
2827:
2825:
2824:Scenic Trails
2822:
2820:
2817:
2815:
2812:
2810:
2807:
2805:
2802:
2800:
2797:
2795:
2792:
2790:
2787:
2785:
2782:
2780:
2777:
2775:
2772:
2770:
2767:
2765:
2762:
2760:
2757:
2755:
2752:
2750:
2747:
2745:
2742:
2740:
2737:
2736:
2733:
2729:
2722:
2717:
2715:
2710:
2708:
2703:
2702:
2699:
2687:
2684:
2682:
2679:
2677:
2674:
2672:
2669:
2668:
2665:
2659:
2656:
2654:
2651:
2649:
2648:West Virginia
2646:
2644:
2641:
2639:
2636:
2634:
2631:
2629:
2626:
2624:
2621:
2619:
2616:
2614:
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2601:
2599:
2596:
2594:
2591:
2589:
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2581:
2579:
2576:
2574:
2571:
2569:
2566:
2564:
2561:
2559:
2556:
2554:
2553:New Hampshire
2551:
2549:
2546:
2544:
2541:
2539:
2536:
2534:
2531:
2529:
2526:
2524:
2521:
2519:
2516:
2514:
2513:Massachusetts
2511:
2509:
2506:
2504:
2501:
2499:
2496:
2494:
2491:
2489:
2486:
2484:
2481:
2479:
2476:
2474:
2471:
2469:
2466:
2464:
2461:
2459:
2456:
2454:
2451:
2449:
2446:
2444:
2441:
2439:
2436:
2434:
2431:
2429:
2426:
2424:
2421:
2419:
2416:
2414:
2411:
2410:
2407:
2402:
2395:
2390:
2388:
2383:
2381:
2376:
2375:
2372:
2366:
2363:
2360:
2354:
2349:
2348:
2338:
2333:
2326:
2323:
2318:
2303:
2299:
2293:
2291:
2274:
2268:
2264:
2252:
2247:
2245:
2237:
2232:
2230:
2222:
2217:
2215:
2207:
2202:
2200:
2192:
2187:
2185:
2177:
2172:
2170:
2162:
2157:
2155:
2145:
2141:
2132:
2129:
2128:
2117:
2113:
2110:
2108:October 1965
2107:
2104:
2101:
2099:
2096:
2091:
2086:
2082:
2077:
2072:
2069:
2066:
2064:
2061:
2056:
2051:
2047:
2044:
2041:
2038:
2035:
2033:
2032:West Virginia
2030:
2025:
2021:
2019:
2017:
2015:
2012:
2010:
2007:
2002:
1997:
1993:
1990:
1987:
1984:
1981:
1979:
1976:
1971:
1966:
1962:
1959:
1956:
1953:
1950:
1948:
1945:
1940:
1935:
1931:
1928:
1925:
1922:
1919:
1917:
1914:
1909:
1904:
1900:
1897:
1894:
1891:
1888:
1886:
1883:
1878:
1873:
1869:
1866:
1864:October 1965
1863:
1860:
1857:
1855:
1852:
1847:
1842:
1838:
1835:
1832:
1829:
1826:
1824:
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1807:
1804:
1801:
1798:
1795:
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1785:
1780:
1776:
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1759:
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1727:
1724:
1719:
1714:
1710:
1705:
1700:
1697:
1694:
1692:
1689:
1684:
1679:
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1661:
1658:
1653:
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1626:
1623:
1618:
1613:
1609:
1604:
1599:
1596:
1593:
1591:
1588:
1583:
1579:
1574:
1571:December 1974
1569:
1566:
1563:
1561:
1558:
1553:
1548:
1544:
1541:
1538:
1535:
1532:
1530:
1527:
1522:
1518:
1516:
1514:
1512:
1509:
1507:
1504:
1499:
1495:
1492:
1489:
1486:
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1468:
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1437:
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1428:
1423:
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1412:
1407:
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1398:
1395:
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1376:
1371:
1367:
1362:
1357:
1354:
1351:
1349:
1346:
1341:
1336:
1332:
1329:
1326:
1323:
1320:
1318:
1317:New Hampshire
1315:
1310:
1305:
1301:
1298:
1295:
1292:
1289:
1287:
1284:
1279:
1274:
1270:
1267:
1264:
1261:
1258:
1256:
1253:
1248:
1243:
1239:
1236:
1233:
1230:
1227:
1225:
1222:
1217:
1212:
1208:
1205:
1202:
1199:
1196:
1194:
1191:
1186:
1181:
1177:
1174:
1171:
1168:
1165:
1163:
1160:
1155:
1150:
1146:
1143:
1140:
1137:
1134:
1132:
1129:
1124:
1119:
1115:
1112:
1109:
1106:
1103:
1101:
1098:
1093:
1088:
1084:
1081:
1079:October 1971
1078:
1075:
1072:
1070:
1069:Massachusetts
1067:
1062:
1057:
1053:
1050:
1047:
1044:
1041:
1039:
1036:
1031:
1026:
1022:
1019:
1016:
1013:
1010:
1008:
1005:
1000:
996:
994:
992:
990:
987:
985:
982:
977:
972:
968:
965:
962:
959:
956:
954:
951:
946:
941:
937:
934:
931:
928:
925:
923:
920:
915:
910:
906:
903:
900:
897:
894:
892:
889:
884:
879:
875:
872:
869:
866:
863:
861:
858:
853:
848:
844:
839:
834:
831:
828:
826:
823:
818:
813:
809:
806:
803:
800:
797:
795:
792:
787:
782:
778:
775:
772:
769:
766:
764:
761:
756:
751:
747:
744:
741:
738:
735:
733:
730:
725:
720:
716:
711:
706:
703:
700:
698:
695:
690:
685:
681:
676:
671:
668:
665:
663:
660:
655:
651:
649:
647:
645:
642:
640:
637:
632:
627:
623:
620:November 1973
618:
613:
610:
607:
605:
602:
597:
592:
588:
586:January 2021
585:
582:
579:
576:
574:
571:
566:
561:
557:
555:January 2021
554:
549:
546:
543:
541:
538:
533:
528:
524:
519:
514:
511:
508:
506:
503:
498:
493:
489:
484:
479:
476:
473:
471:
468:
463:
458:
454:
451:
448:
445:
442:
440:
437:
432:
427:
423:
418:
413:
410:
407:
405:
402:
397:
392:
388:
385:November 1987
383:
378:
375:
372:
370:
367:
362:
358:
355:
353:
350:
348:
345:
343:
340:
338:
335:
333:
330:
328:
327:
324:
316:
314:
308:
307:meaningless.
304:
295:
293:
289:
278:
276:
272:
268:
264:
260:
256:
252:
247:
245:
241:
237:
233:
229:
225:
221:
217:
213:
202:
200:
196:
192:
188:
184:
180:
171:
168:
165:
162:
159:
156:
153:
152:
151:
148:
138:
135:
131:
126:
124:
120:
115:
113:
109:
105:
101:
96:
91:
89:
88:Stewart Udall
86:
82:
78:
74:
73:United States
70:
66:
62:
54:
50:
46:
39:
35:
28:
23:
19:
2819:Scenic Areas
2778:
2613:South Dakota
2603:Rhode Island
2598:Pennsylvania
2578:North Dakota
2400:
2332:
2324:
2317:
2305:. Retrieved
2301:
2277:. Retrieved
2267:
2144:
1761:South Dakota
1691:Rhode Island
1641:January 2009
1625:Pennsylvania
1480:North Dakota
1359:October 1965
380:October 1971
356:
351:
346:
341:
336:
331:
322:
309:
305:
301:
284:
248:
236:Marine Corps
208:
195:marshy areas
179:crater lakes
175:
144:
127:
116:
92:
64:
60:
58:
53:Philadelphia
18:
2681:Puerto Rico
2528:Mississippi
2443:Connecticut
1660:Puerto Rico
1162:Mississippi
604:Connecticut
288:trespassers
275:land trusts
263:game refuge
187:oxbow lakes
183:kettle lake
141:Designation
108:Puerto Rico
2859:Categories
2754:Grasslands
2643:Washington
2563:New Mexico
2558:New Jersey
2433:California
2260:References
2161:Sand Creek
1978:Washington
1636:March 1964
1425:March 1964
1383:New Mexico
1348:New Jersey
1203:June 1971
773:June 1971
713:April 2013
673:March 1964
615:April 1968
540:California
110:, and the
95:geological
81:geological
77:biological
51:plaque in
2799:Preserves
2774:Monuments
2653:Wisconsin
2618:Tennessee
2523:Minnesota
2498:Louisiana
2307:April 18,
2063:Wisconsin
1792:Tennessee
1606:June 2016
1576:June 1983
1430:July 2014
1364:June 1983
1206:May 1986
1131:Minnesota
984:Louisiana
292:liability
232:Air Force
205:Ownership
2794:Parkways
2638:Virginia
2588:Oklahoma
2568:New York
2543:Nebraska
2533:Missouri
2518:Michigan
2508:Maryland
2493:Kentucky
2473:Illinois
2448:Delaware
2438:Colorado
2428:Arkansas
2125:See also
2079:May 2012
1947:Virginia
1742:May 1986
1737:May 1974
1707:May 1974
1702:May 1974
1560:Oklahoma
1414:New York
1255:Nebraska
1193:Missouri
1100:Michigan
1038:Maryland
953:Kentucky
825:Illinois
678:May 1987
639:Delaware
573:Colorado
505:Arkansas
199:sinkhole
38:Shiprock
2749:Forests
2658:Wyoming
2633:Vermont
2538:Montana
2478:Indiana
2458:Georgia
2453:Florida
2423:Arizona
2413:Alabama
2279:June 7,
2098:Wyoming
1885:Vermont
1224:Montana
860:Indiana
697:Georgia
662:Florida
470:Arizona
369:Alabama
271:museums
71:of the
2814:Rivers
2593:Oregon
2548:Nevada
2488:Kansas
2463:Hawaii
2418:Alaska
1590:Oregon
1286:Nevada
922:Kansas
763:Hawaii
404:Alaska
313:zoning
281:Access
255:forest
191:swamps
2789:Parks
2623:Texas
2503:Maine
2468:Idaho
2137:Notes
2045:2021
2042:1964
1991:2011
1988:1965
1960:1987
1957:1965
1929:1980
1926:1980
1898:2009
1895:1967
1867:1977
1836:2009
1833:1965
1823:Texas
1805:1974
1802:1966
1774:1980
1771:1965
1673:1980
1670:1975
1542:1980
1539:1965
1493:1975
1490:1960
1462:1983
1459:1967
1396:1982
1393:1969
1330:1987
1327:1971
1299:1973
1296:1968
1268:2006
1265:1964
1237:1980
1234:1966
1175:1976
1172:1965
1144:1980
1141:1965
1113:1984
1110:1967
1051:1980
1048:1964
1020:1984
1017:1966
1007:Maine
966:2009
963:1966
935:1980
932:1968
904:1987
901:1965
873:1986
870:1965
807:1980
804:1968
794:Idaho
745:1972
742:1972
583:1964
452:1972
449:1972
357:Image
2676:Guam
2628:Utah
2583:Ohio
2483:Iowa
2309:2021
2281:2021
2074:1964
2039:15
1854:Utah
1768:12
1601:1966
1529:Ohio
891:Iowa
867:29
841:1987
836:1965
732:Guam
708:1966
580:15
551:1964
521:1976
516:1972
486:2011
481:1965
420:1976
415:1967
259:park
244:Navy
193:and
117:The
104:Guam
79:and
59:The
25:The
2105:5
2070:18
2067:18
2036:16
1985:18
1982:18
1954:10
1951:10
1892:11
1889:12
1830:20
1827:20
1799:13
1796:13
1765:13
1632:27
1629:27
1597:11
1594:11
1536:23
1533:23
1456:13
1453:13
1421:26
1418:28
1390:12
1387:12
1355:10
1352:11
1324:11
1321:11
1231:10
1228:10
1200:16
1197:16
1138:7
1107:12
1104:12
1076:10
1073:11
1045:5
1014:14
1011:14
960:6
864:30
832:18
829:18
801:11
798:11
704:11
701:11
669:18
666:18
577:16
547:37
544:37
477:10
474:10
411:16
408:16
65:NNL
2861::
2300:.
2289:^
2243:^
2228:^
2213:^
2198:^
2183:^
2168:^
2153:^
2102:6
2093:56
2058:55
2027:54
2013:0
2004:53
1973:52
1942:51
1923:7
1920:7
1911:50
1880:49
1861:4
1858:4
1849:48
1818:47
1787:46
1756:45
1733:6
1730:6
1721:44
1698:1
1695:1
1686:43
1667:5
1664:5
1655:42
1620:41
1585:40
1567:3
1564:3
1555:39
1524:38
1510:0
1501:37
1487:4
1484:4
1475:36
1444:35
1409:34
1378:33
1343:32
1312:31
1293:6
1290:6
1281:30
1262:5
1259:5
1250:29
1219:28
1188:27
1169:5
1166:5
1157:26
1135:8
1126:25
1095:24
1064:23
1042:6
1033:22
1002:21
988:0
979:20
957:7
948:19
929:5
926:5
917:18
898:7
895:7
886:17
855:16
820:15
789:14
770:7
767:7
758:13
739:4
736:4
727:12
692:11
657:10
643:0
611:7
608:8
512:5
509:5
446:7
443:7
376:7
373:7
265:,
261:,
257:,
242:,
238:,
234:,
230:,
226:,
222:,
218:,
214:,
197:,
181:,
114:.
106:,
102:,
90:.
2720:e
2713:t
2706:v
2393:e
2386:t
2379:v
2311:.
2283:.
634:9
599:8
568:7
535:6
500:5
465:4
434:3
399:2
364:1
63:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
