Freshwater · Valley
Trout - Rainbow
These notes are district-general defaults. Search your lake or stream first — special waters override these rules. Full booklet: 2026 Freshwater Guide. Catch reports: Fish data.
Species group
TROUT
Season
District general (CCR §7.00(d)): All anadromous waters except those listed by name in Special Regulations: open all year (for hatchery trout/steelhead under the bag below), closed to salmon unless a Special Regulation says otherwise. Major rivers (Sacramento, Feather, American, etc.) usually have detailed Special Regulation subsections — look up the reach by name. Lakes & reservoirs (unless named specially): generally open all year under statewide inland trout rules — verify in the guide. IMPORTANT: If your lake, river, or stream is named in the Alphabetical List of Waters with Special Fishing Regulations (2026 Freshwater Sport Fishing Guide), those special rules override this district default.
Season notes
Hatchery trout/steelhead = healed adipose fin clip (adipose absent). Unless otherwise provided, wild trout/steelhead must be released immediately.
Daily bag limit
§7.00(d) anadromous default: 2 hatchery trout or hatchery steelhead per day; 4 in possession. Closed to salmon unless Special Regulations allow. Typical lakes/reservoirs (if not listed specially): 5 trout per day / 10 in possession — confirm in the guide. IMPORTANT: If your lake, river, or stream is named in the Alphabetical List of Waters with Special Fishing Regulations (2026 Freshwater Sport Fishing Guide), those special rules override this district default.
Minimum size
See special-water listing for size limits on named reaches.
Gear restrictions
Named Valley rivers often require barbless hooks and have seasonal salmon closures — follow the Special Regulation for that reach.
Identification
Resident freshwater rainbow trout adults average between 1 and 5 lb in riverine environments, while lake dwelling and anadromous forms may reach 20 lb. Coloration varies widely between regions and subspecies. Adult freshwater forms are generally blueish green or olive green with heavy black spotting over the length of the body. Adult fish have a broad reddish stripe along the lateral line, from gills to the tail, which is most pronounced in breeding males. The caudal fin is squarish and only mildly forked. Lake dwelling and anadromous forms are usually more silvery in color with the reddish stripe almost completely gone. Juvenile rainbow trout display parr marks with dark vertical bars typical of most salmonid juveniles. In some redband and golden trout forms parr marks are typically retained into adulthood.