Sponsor Payment

Thank you for supporting COSA!

You signed up for the level.

Pay By Credit Card 

BRONZE Sponsor $750

SILVER Sponsor $1,500

GOLD Sponsor $2,500

PLATINUM Sponsor $5,000 or more

DO NOT use the payment button below if you would like to contribute more than $5,000. Instead, contact Lisa Dierauf directly with the amount you'd like to contribute and we will send you additional information.

Pay By Check

Please make check payable to CNDC fbo COSA for $ and send to:

COSA c/o Lisa Dierauf, City of Boulder Open Space and Mountains Parks
2420 55th Street
Boulder, CO 80301


If you have questions or need assistance, please contact Lisa Dierauf.

Lisa Dierauf
City of Boulder Open Space and Mountain Parks