GM-12 — Reconnaissance Geologic Map of Reserve Thirty-minute Quadrangle

By Robert H. Weber and Max E. Willard, 1959, scale 1:126,720.

This map covers the San Francisco River and surrounding highlands and is centered around Reserve, New Mexico. Tertiary igeneous rocks compose most of the mapped area which are overlain by extensive deposits of the Gila Conglomerate.

Related 30-minute geologic maps of this region include:

• GM-1 — Hillboro Peak
• GM-2 — Luera Spring
• GM-3 — Piñonville
• GM-5 — Datil
• GM-6 — Cañon Largo
• GM-10 — Mogollon
• GM-13 — Alum Mountain
• GM-14 — Las Cruces
• GM-15 — Virden
• GM-23 — Pelona