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Black Eagle Mine Road - Joshua Tree National Park
Beginning 6.5 miles north of the Cottonwood Visitor Center, this dead-end dirt road runs along the edge of Pinto Basin, crosses several dry washes, and then winds up through canyons in the Eagle Mountains. The first 9 + miles of the road are within the park boundary. Beyond that point is BLM land. Several old mines are located near this road.

Red Rock Canyon, NV
Red Rock Canyon is less then an hour's drive west of Las Vegas and has many significant geologic features, including a section of the Keystone Fault. It's a great place for hiking and rock scrambling.