The reason? Those beer companies are listed supporters of
WildEarth Guardians--an environmental nonprofit working to shut down the Colowyo coal mine outside of town.
Stockmen's Liquor removed 12 beer brands--including New Belgium Brewing and Breckenridge Brewing--after realizing they were listed on a WildEarth Guardian's webpage as supporters. The nonprofit has since removed the page that listed the brands.
New Belgium Brewing responded by saying its support of WildEarth Guardians was limited to grants for river restoration projects.