Rocky Mountain Resources ( RMR ) is a Colorado based company and the owner and operator of the Mid-Continent limestone quarry. RMR is proud to be a community business owner, development partner, and a stable employer in Glenwood Springs. RMR produces a variety of limestone products that are used in everything from underground mine safety, to stream restoration and local infrastructure projects. In fact, RMR was a significant material supplier on the Grand Avenue Bridge project, which was just completed in 2017 – the largest infrastructure project on the Western Slope in 25 years! This is just one example of how, working together, RMR and Glenwood Springs make Glenwood Rock!