Our Work

IDA Colorado Themes

What is light pollution?

Light pollution

Lighting Best Practices

Best Practices

Public policy

Public policy

IDA Colorado Programs

Lights Out Colorado

The National Audubon Society  and the International Dark-sky Association are working on this new program. 

Lights Out Colorado

Dark Sky Places

Officially-recognized Dark Sky Places in Colorado. 

Dark Sky Places

Sirius Star Award

To honor a top contributor to IDA Colorado.

Sirius Star Award
Join Now

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.