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Boegh, Beth (2005). "The Point
Porphyry Light, Lake Superior : the Andrew Dick Diary and Reminiscences of Bob McKay from a Century of Lighthouse Keeping".
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The federal government established a lighthouse at Point
Porphyry in 1873. This is located at the southwestern tip of the island.
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The island and nature reserve take their name from the characteristic
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371:(Map). 1 : 1,600,000. Official road map of Ontario.
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The entire 107-hectare (264-acre) island constitutes the
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347:. Thunder Bay Historical Museum Society: 17–41.
389:Restructured municipalities - Ontario map #2
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392:(Map). Restructuring Maps of Ontario.
373:Ministry of Transportation of Ontario
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419:Landforms of Thunder Bay District
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248:Porphyry Island Provincial Park
424:Uninhabited islands of Ontario
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218:Sleeping Giant Provincial Park
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243:found in the volcanic rocks.
214:Edward Island Provincial Park
290:Geographical Names Data Base
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173:uninhabited nature reserve
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295:Natural Resources Canada
118:3 km (1.9 mi)
110:107 ha (260 acres)
222:Silver Islet, Ontario
91:48.35056°N 88.63583°W
191:Thunder Bay District
250:or nature reserve.
206:Black Bay Peninsula
96:48.35056; -88.63583
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398:. Retrieved
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375:. 2010-01-01
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195:northwestern
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226:Thunder Bay
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159:Thunder Bay
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70:Coordinates
413:Categories
400:2011-09-07
379:2011-09-07
325:2011-09-07
300:2011-09-07
262:References
241:porphyries
170:Population
82:88°38′09″W
79:48°21′02″N
55:Geography
237:feldspar
155:District
145:Province
60:Location
356:Sources
198:Ontario
149:Ontario
396:. 2006
365:Map 13
345:XXXIII
233:quartz
202:Canada
184:island
182:is an
138:Canada
115:Length
369:(PDF)
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
