- Began January 1, 2013. Year-round / ice fishing was proposed by the public during ODFW’s 2012 angling regulation process and was adopted by the Oregon Fish and Wildlife Commission.
- Creel surveys for the winter of 2013 show 2,162 anglers during ice fishing season harvested 3,200 trout.
- In comparison, during the summer of 2012, anglers caught and released 22,000 trout and kept 85,500 trout.
- The 2014 ice fishing season (Nov. 2013 to April 2014) creel shows about 3,500 anglers enjoyed Diamond Lake. Catch rates ranged from 0.5 to 1.7 fish per angler with an estimated maximum of 6,000 trout harvested.
- Due to warmer temperatures the winter of 2014-15, Diamond Lake did not freeze over and no ice fishing harvest occurred.
- ODFW biologists believe the year-round fishery at Diamond Lake increases fishing opportunities for everyone, but doesn’t negatively impact angler success rate.