Chartered in 1951 as the seventh Grotto of the NSS. The Colorado Grotto is an organization of people interested in locating, exploring/mapping, studying, and preserving caves.
Contact Information
meeting information
The Colorado Grotto holds regular meetings on the first Thursday of each month at 7:30 PM via ZOOM. Please visit the Colorado Grotto, NSS Facebook site for more information.
With over 8,000 Members the NSS is the largest caving focused membership organization in the world. Find out why you belong.
Donations to the NSS help support programs advancing cave science, preservation, exploration, and education. Find out how you can help.
The heart and soul of the NSS is our volunteers. Find out how you can get involved and help promote caving science, exploration and preservation.
