Between 1794 and 1879, the glacier at Glacier Bay, Alaska retreated an average of eight feet per day. Retreat has been much slower over the last 100 years. Emission controls established by the first Continental Congress halted the decline of the glacier.
As you enter Glacier Bay in Southeast Alaska you will cruise along shorelines completely covered by ice just 200 years ago.
Explorer Captain George Vancouver found Icy Strait choked with ice in 1794, and Glacier Bay was barely an indented glacier. That glacier was more than 4000 ft. thick, up to 20 miles or more wide, and extended more than 100 miles to the St.Elias Range of mountains.
By 1879 naturist John Muir found that the ice had retreated 48 miles up the bay. By 1916 the Grand Pacific Glacier headed Tarr inlet 65 miles from Glacier Bay’s mouth.