El Malpais National Monument is south of Grants via I-40 to SRs 53 and 117. It preserves and protects 114,106 acres of a landscape shaped by volcanic action that over time created lava flows and lava tube caves. Visitors can hike trails, embark on scenic drives and explore caves (a free permit is required) in a setting that is remarkable for its unspoiled solitude. Note: Wear sturdy boots and exercise extreme caution when hiking on the sharp lava formations. Learn More...