Rainbow, Brown and Brook trout are native fishes to the Warner Mountain Ranger District. Many streams and lakes are stocked with trout each year. Redband trout lives in Goose Lake and spawn in Lassen Creek. Although uncommon, Redband trout can be found in a few other streams on the northwest side of the Warner Mountains.

Rainbow trout can be identified by the bright band on each side with dark spots on their back. Brown trout have a square tail with large spots on their backs and sides. Brook trout have worm-like markings on their back with small red spots on each side and a white border on the leading edge of the fins. It is important that fish or live bait not be transplanted. Introducing any new specie could harm native plant or fish populations.