Gray Army Air Field

Gray Army Airfield (IATA: GRF), also known as Gray AAF, is a military airport located at Fort Lewis near Tacoma, Washington, USA.

Established in 1942 by United States Army Air Forces. Used by Air Technical Service Command as an aircraft maintenance and supply depot; primarily to service Lend-Lease aircraft being sent to Alaska for subsequent transfer to Soviet Union.

The above mentioned information is taken from: http://en.wikipedia.org/wiki/Gray_Army_Airfield.