Upper Willamette System Fishing Report and Forecast Posted on August 17, 2023August 17, 2023 by Glenn Zinkus Detroit Reservoir/North Santiam Trout Action. Willamette River Slow Water Bass. Lookout and Bedrock Fires Limiting Access to Upper McKenzie and Willamette Areas. Alton Baker Canal: Alton Baker was stocked with 900 legal size rainbows... This post is only available to Members. If you are a Member, please be sure to log in and remember to select the Remember Me option. If you want to become a member or find out more, take a look here. If you are looking for our free content head here. And, if you need a hand, please reach out here.