Report of the Superintendent of the Crater Lake National Park, 1910
Fish and Fishing.
The species of fish in Crater Lake are the rainbow trout and lake trout. There were no fish in the lake until they were planted there, the first few in 1887 and a larger number in 1893. In Lower Anna Creek are the Dolly Varden trout. Fishing in Crater Lake is permitted under the following rules: Open season from July 1 to September 30 with hook and line only, the catch of each angler being limited to five fish in any one day. During this month 50,000 fry of the rainbow trout have been planted in Crater Lake by Mr. A. L. Parkhurst, of the Crater Lake Company.