High Quality Content by WIKIPEDIA articles! The Old Administrative Area Historic District, also known as Beaver Creek, is the former headquarters area of Grand Teton National Park. The complex of five houses, three warehouses and an administrative building were designed in the National Park Service rustic style between 1934 and 1939 and were built by the Civilian Conservation Corps and the Public Works Administration. As part of the Mission 66 program, the park headquarters were relocated to Moose, Wyoming in the 1960`s.