COMMENT BY
Bill from Houghton, MI
COMMENT ABOUT PLACE
Houghton, MI
COMMENT
Map is incomplete
The 49931 zip code map to display Houghton is misleading. It implies that Isle Royale, isolated in the northern reaches of Lake Superior, is the area covered by this Zip code. Isle Royale National Park's headquarters is in Houghton, therefore it is theoretically proper to include it as being covered by Zip code 49931; however the permanent population of Houghton is on the mainland, just to the south of Hancock (49930). For display purposes, it would be best to simply ignore Isle Royale and display the mainland area only; Isle Royale is completely within Isle Royale National Park (www.nps.gov/isro), thus there is no year-round population, no schools, no permanent private housing, no roads, etc, on the Island.
Bill Fink is a former superintendent of Isle Royale National Park, and a former president of the Keweenaw Peninsula Chamber of Commerce. Call me at 906-370-9597 if you have further questions.