 Grand County was an epicenter of the Sagebrush Rebellion which took place during the late 1970s and early 1980s, when local residents protested what they saw as overreaching Federal control of Western US land.An early event in the Rebellion was July 4, 1980, when 300 Grand County residents gathered behind a flag-decorated bulldozer, in protest of the inclusion of Mill Creek Canyon as part of a Bureau of Land Management wilderness study area.Despite plowing nearly 200 yards up the canyon, the group did not reach the study area's boundary.