Fast Facts |
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| Nearest City | Grand Portage, MN |
| Last Site Visit | Never |
| Annual Visitation | 10,953 in 2007 (view all years) |
| Creation Date | March 3, 1931 |
| Total Area | 571,790 acres |
| Entrance Fee | $4 per person per day |
| Highest Average Temperature | 75°F, in July |
| Lowest Average Temperature | -3°F, in January |
| Record High Temperature | 95°F, in 1995 |
| Record Low Temperature | -43°F, in 1996 |
| Lowest Elevation | 601 feet, at Lake Superior |
| Highest Elevation | 1,394 feet, on Mount Desor |
Area Weather Information |
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Park Evolution |
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| 1931: | Isle Royale National Park created |
| 1980: | Named a UNESCO International Biosphere Reserve |
Phone Numbers & Addresses |
Mailing AddressIsle Royale National Park
800 East Lakeshore Drive
Houghton, Michigan 49931-1869 Visitor Information(906) 482-0984
(906) 482-8753 (Fax)
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