Skip to main content
Discover Banner Photo
Login
Toggle High Contrast Mode   Help

  1. Open Space
  2.  Discover
  3. Activity Registration
A view of the sandstone cliffs at Sandstone Ranch.

The Geology of Sandstone Ranch

 10/03/2026  |  10:30 AM - 12:00 PM
  Sandstone Ranch  |  Registration Required

Natural History - All Ages Welcome

Discover Sandstone Ranch through a guided one-mile geology walk that brings 70 million years of history to life. Explore ancient beach sands, shallow-sea fossils, glacial deposits, and striking Fox Hills Sandstone cliffs while learning how rising mountains, shifting shorelines, and powerful floods shaped today’s landscape. Along the way, see oyster beds, trace fossils, and evidence of past glaciers, and enjoy stories connecting geology, local history, and the ever-changing St. Vrain Valley.

Minimum Participants: 5
Maximum Participants: 35

Registration is required for this activity.

Boulder County wants to ensure that everyone has equal access to our programs, activities, and services. To request an Americans with Disability Act (ADA) accommodation, please email [email protected], or call 303-441-1386. Submit your request as early as possible, and no later than two business days before the event.

If you need help in another language, please email [email protected], or call 303-678-6277. Contact us as early as possible, and no later than three business days before the event.

Contact
Contact: Carlos Lerma
(720) 698-0694
 Participant Waiver and Photo Release

Registration Info

Activity Registration Closed

Registration will open 09/01/2026 12:01 AM

Cancel

Leader/Volunteer Info

Anne Profile Photo

Anne A - Volunteer Naturalist

retired avid gardener for, pollinators and flowers and food through the year learning how to adapt to very low rain conditions interested in the food webs in ecology and adaption mechanisms by all living things


Kenneth Profile Photo

Kenneth M - Volunteer Naturalist

I grew up outside of Tucson, exploring the Sonoran Desert including Baja California (before there were roads there!), climbing in the mountains of southern Arizona, tracking birds and wild animals including black bear, javelina, mountain lions, even following rumors of the return of jaguars in the remote areas of the New Mexico "boot-heel." The plants, animals, geology, weather and cultures of these areas became a life-long fascination.


 Loading...