Union County topographic maps

Average elevation: 6,640 ft

Capulin Volcano National Monument is a well-preserved, relatively young (55,000 to 62,000 years old), symmetrical cinder cone. It rises steeply from the surrounding grassland plains to an elevation of 8,182 feet above sea level. The irregular rim of the crater is about a mile in circumference and the crater…

Average elevation: 7,201 ft

Folsom is situated in a wide valley near the headwaters of the Cimarron River, locally known as the Dry Cimarron, as it runs underground during part of its course through eastern New Mexico. The village is ringed by buttes, mesas, and old volcanic cones and lava flows. Most of the valley is rich grassland,…

Average elevation: 6,463 ft