Commissioner Larry Schoen said the commission can't wait for collaborative efforts to get results.
"The world is moving on around us, and we're not the only actors here," Schoen said. "I feel confident that nothing this board is going to do is in any way going to feel like subverting the public process that would come in the development of a management plan."
Officials in nearby Custer County oppose any areas in the region being designated as a national monument.
"If it were in Blaine County, it wouldn't be a problem," said Wayne Butts, chair of the Custer County Commission. "We don't care what happens in Glitter Gulch."