Isle Royale National Park Headquarters
800 E Lakeshore Dr Houghton, MI 49931
906-482-0984
Fax (906) 482-8753
The Royale Line
Box 24 Copper Harbor, MI 49918-0024
906-289-4437
Fax (906) 289-4952
102050.3420@compuserve.com
Isle Royale Natural History Association
800 E Lakeshore Dr Houghton, MI 49931
800-678-6925
irnha@portup.com

Isle Royale National Park Concessions
Mammoth Cave, KY 42259-0027
502-773-2191 (off season: Oct 15 - May 15)
906-337-4993 (In Season: May 15 - Oct 15)
The Mountaineers
300 3rd West, Seattle, WA 98119
800-553-4453
Isle Royale Seaplane Service
PO Box 371, Houghton MI 49931
906-482-8850 (May 15 - Sep 15)
Website Curator
isleroyale@yahoo.com

Grand Portage-Isle Royale Transportation Line, Inc.
1507 N 1st St Superior, WI 54880
715-392-2100
Stuart@Grand-Isle-Royale.com