Lewis Glacier is the northerly of two glaciers flowing east into Seligman Inlet

Seligman Inlet

Seligman Inlet is a broad inlet which recedes inland for 6 nautical miles between Choyce Point and Cape Freeman on the east coast of Graham Land. The inlet was photographed from the air by the United States Antarctic Service in 1940...

, on the east coast of Graham Land

Graham Land

Graham Land is that portion of the Antarctic Peninsula which lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee and the US Advisory Committee on Antarctic Names, in...

. The glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 was photographed from the air by the United States Antarctic Service (USAS) in 1940. It was charted in 1947 by the Falkland Islands Dependencies Survey (FIDS), who named it for William Vaughan Lewis, British glaciologist and lecturer at the Dept. of Geography, Cambridge University.