What is light pollution?
Lighting Best Practices
Lights Out Colorado
The National Audubon Society and the International Dark-sky Association are working on this new program.
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.