1. Frenchman
Mountain
2. Trilobites at
Frenchman Mountain 3. Trace fossils at
Frenchman Mountain 4. Crinoidal
limestone in Rainbow Garden, just east of Frenchman Mountain 5. Hot rocks in White
Rock Canyon 6. Flash-flood polish
of the walls of White Rock Canyon 7. Spooky Canyon is cut
into ancient alluvial-fan deposits 8. Keystone Thrust and
Frenchman Mountain: famous geologic locations 9. Geology Field Trip
program (March 25-April 2, 2023) 10. Geologic map of the
Lake Mead area 12. River Mountain
geology posters 13. The Red-Black fault
of the River Mountains 14. Nature Discovery
Trail and Rock Garden in Boulder City 15. Rocks on the
ancient land surface beneath the Keystone Thrust 16. Scenic 'underlook' shows deep weathering of granite 17. Black basaltic
dikes cut white granite, and now both are weathered to breccia 20, 21, 22. Red Rock
Canyon of Las Vegas