Located along the course of the Kachess River, Little Kachess Lake is a very popular lake for fishing. It functions as a storage reservoir for an irrigation project run by the United States Bureau of Reclamation, and annual reservoir drawdown means that there are no boat launching facilities available by late summer.

The lake is periodically stocked with kokanee and cutthroat fry, and fishing season runs year-round. Fishing rules and regulations are subject to change, so visitors are advised to check the website. The lake is also home to a campground run by the U.S. Forest Service.