This bill prohibits the Secretary of the Interior from approving any expansion of the Mid-Continent Limestone Quarry near Glenwood Springs, Colorado. The measure blocks the federal government from processing applications to expand existing mining operations or approve new mineral extraction contracts on specific parcels of Bureau of Land Management land in Garfield County, Colorado, covering the limestone quarry and surrounding areas. The bill affects the quarry operator, federal land managers, and the Glenwood Springs area, which is known for its hot springs and tourism economy. The legislation contains no new funding provisions or implementation timelines, instead serving as a direct prohibition on future expansion activities. The bill was introduced by Colorado Senators Michael Bennet and John Hickenlooper in July 2026.