This is a trout hatchery.
Contributors: United States. Bureau of Sport Fisheries and Wildlife.
Series: RP / Bureau of Sport Fisheries and Wildlife -- 57.; Resource publication (United States. Bureau of Sport Fisheries and Wildlife) -- 57.
Publisher: U.S. Dept. of the Interior, Bureau of Sport Fisheries and Wildlife; [For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1968
Place of publication: [Washington, D.C.]
Language: eng
Subjects: Trout -- United States.; Fish hatcheries -- United States.
Notes: Cover title.

"Formerly F&WS Circular 31."