NPS/Herbert
Deposited: Triassic Period (208 to 245 million years ago)
Depositional Environment: Tropical tidal flat
Appearance: Dark red-brown, ledge-forming sandstones and siltstones
Example: Irregular slopes with ledges just above the White Rim Road at the Island in the Sky District of Canyonlands
Last updated: April 18, 2025
2282 Resource Blvd. Moab, UT 84532
435-719-2313