What is light pollution?
Lighting Best Practices
Lights Out Colorado
Jointly sponsored by Audubon Rockies and IDA Colorado
Dark Sky Places
Officially-recognized Dark Sky Places in Colorado.
Sirius Star Award
To honor a top contributor to IDA Colorado
Join the International Dark-sky Association
IDA members with a Colorado mailing address are automatically part of the Colorado chapter.
Colorado chapter members get a monthly newsletter and other benefits.