1969 Map of Merriam Crater

About this map

The volcanic cinder cones of the San Francisco volcanic field dominate this 1969 landscape, notably the prominent Merriam Crater and its neighbor The Sproul. Situated within the Coconino National Forest, the map records a high-desert environment defined by geology and sparse infrastructure. Craters are named with geographic and descriptive specificity, including North Sheba Crater, South Sheba Crater, and Junction Crater, often accompanied by nearby pipelines that cut across the terrain.