In 1985 the United States House of Representatives Subcommittees on Public Lands and National Parks and Recreation held a joint subcommittee hearing on Greater Yellowstone , resulting in a 1986 report by the Congressional Research Service outlining shortcomings in interagency coordination and concluding that the area 's essential values were at risk .
In 1985 the United States House of Representatives Subcommittees on Public Lands and National Parks and Recreation held a joint subcommittee hearing on Greater Yellowstone .