Just north of Tres Piedras, is San Antonio Mountain. According to the New Mexico State Wildlife Department, “Rising 10,908 feet above surrounding sagebrush flats, impressive San Antonio Mountain is the largest “free-standing” mountain (not part of any mountain chain) in the continental United States. The mountain’s rounded volcanic dome, nearly four miles across at the base, is a landmark that’s easily spotted from many locations in northern New Mexico and southern Colorado.”
Named for Saint Anthony, the Tiawas call it Tsin, one of four sacred hills where they believe revered spirits to live. Peaceful and awe-inspiring.
It is quite impressive and dominates the otherwise flatter landscape surrounding it. Drives and hiking are available.