Providing free nature outings and adventures to youth who would other wise not have such opportunities, Boulder Valley ICO is entirely volunteer run.

See our new website for more information on our program.


All of our outings are entirely free to our participants, but we need funds to pay for things like travel and equipment. Accordingly, we are very heavily dependent on the generosity of donors. If you would like to contribute, it is easy and secure, and we will appreciate your support very much.
You can support Boulder Valley ICO by donating with a credit card online or by written check. To donate online, click the "Donate Online" link below. Your donation is 100% tax deductible.
You can also donate to Boulder Valley ICO by check made payable to “Sierra Club Foundation – Boulder Valley ICO”. This check should be mailed to:
Sierra Club Foundation – Boulder Valley ICO
637 South Broadway
Suite B, No. 117
Boulder, CO 80305
Thank you!