Cobbles of Time
08/17/2025
| 09:00 AM - 01:00 PM
Caribou Ranch
| Registration Required
Natural History - Adults (18 & older)
The story of Glacial Lake Devlin and evidence of its catastrophic demise is a fascinating and little-known chapter in the geologic history of Caribou Ranch. Join volunteer naturalists on this 4.5-mile moderate hike to learn about the evidence firsthand. We will also learn about some of the oldest rocks in the area and the valuable minerals that formed and were mined nearby.
Minimum Participants: 5Maximum Participants: 25
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
Carlos Lerma
(303) 678-6214
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Roger M - Volunteer Naturalist
I got hooked on being in nature as a kid wandering the palmetto scrub and backwaters of west coast Florida in search of critters and fossils. Though a third-generation geologist, I’ve never earned a dime with my geology degree. For 3 years as a Peace Corps Volunteer in Ghana, I taught secondary school geology, chemistry, math, and general science. A second degree in graphic design led to a career in technical and scientific illustration. I have been volunteering as a naturalist since 1976.
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Activity Contact
(303) 678-6214