Welcome to the Columbia Network of the Oregon Sierra Club!

The Columbia Network is an active group of over 7,100 local citizens from the Northwest corner of the state of Oregon. Our network is entirely volunteer run. Be sure to check out our volunteer page to find out how you can be involved with the Sierra Club at the local level.

Moonlit Mt Hood

Moonlit Mount Hood and Frog Lake photo Brian Pasko

Stay In Touch!

Get updates on conservation meetings, actions that you can take, outings, and more. To get weekly email news go to the sign-up page and subscribe.