sentences:  In 1935, the Works Progress Administration built the Colorado Amphitheater for Camp George West on its southern side.Developers in 1957 originally wanted to build the Magic Mountain theme park at its northeastern alcove, until residents of Applewood protested and convinced them to build elsewhere.Subsequent attempts to develop or quarry the mountain including condominiums and a corporate headquarters continued through the remainder of the 20th century, and the mesa was gradually purchased or placed under easement by Jefferson County for open space.