[3] The glacier was named in honor of Frank W. Benson, former Governor of Oregon during an expedition in 1914.

Due to its small size, researchers have frequently questioned whether it was a glacier or a perennial snowfield.

Areal photography taken in 2007 showed crevasses on the surface, confirming that it does flow and is a true glacier.

It is not expected to remain a true glacier much longer, however, due to climate change.

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