Round Mountain (Grand County, Utah)

Round Mountain is a small 6185 ft summit made of gray hornblende plagioclase trachyte in the Castle Valley in southeastern Grand County, Utah, United States, about 10 mi east-northeast of Moab. Round Mountain is an extinct bysmalith, or igneous volcanic plug, that rises 700 ft above the middle of the valley floor. Precipitation runoff from the mountain drains into Castle Creek, which is a tributary of the Colorado River. The nearest higher peak is Castleton Tower, 1.42 mi to the southwest.