Which glacier is named after an early American conservationist and explorer: Gem Glacier or Grinnell Glacier?
Gem Glacier: Gem Glacier is the smallest named glacier in Glacier National Park (U.S.). Gem Glacier:  Located on the east (Glacier County) side of the Continental Divide arête known as the Garden Wall, the glacier is situated on the cliff face above the better known Grinnell Glacier. Gem Glacier:  Between 1966 and 2005, Gem Glacier lost 30 percent of its acreage and Grinnell Glacier lost 40 percent.
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