Each year the association stocks the lake with catfish and bass, which join the crappie and bluegill.

This included creating eight lakes, stocking the lakes with fish, and the federal government operating a hatchery on the reservation.

In the 1890s a few cottagers stocked the lake with fish of desirable kinds for eating and one year brought in some choice eels.

The variety of fish has been expanded by stocking the lake with carp, tench and roach, in addition to those introduced in 1863.

The decision not to continue to stock the lakes with fish was part of a larger debate about what natural means in reference to national parks.