Leon Peak, Grand Mesa, Colorado Mesa Colorado 81624 USA At 11,236 feet, it is the highest point in Mesa County and the second highest point on the Grand Mesa (after Crater Peak). According to oral history interviewee Harold Zimmerman, there was a cabin for a fire watchman on the top of Leon Peak during the 1900’s and 1910’s. The skeleton of the cabin still exists, a long with a sign explaining the site's historical significance. yes yes