This legislation aims to prevent the expansion of the Mid-Continent Limestone Quarry located near Glenwood Springs, Colorado, by prohibiting the Secretary of the Interior from processing or approving any applications for such expansion. This prohibition specifically targets existing mineral operations involving limestone, whether under mining claims or mineral material sales contracts. The affected operations must be situated on land managed by the Bureau of Land Management (BLM) within a precisely described area in Garfield County, Colorado. The bill outlines specific sections, townships, and ranges to define the protected land, ensuring no further limestone extraction expansion occurs within this designated region.