Freshwater · Colorado River
Trout - Brook
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
Colorado River District waters follow Colorado River / district-specific freshwater rules in the 2026 Freshwater Sport Fishing Guide (not the coastal district tables alone). Look up Colorado River, border waters, and named Imperial / Riverside / San Bernardino waters in the guide’s special and district sections. 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
Confirm current bag, season, and gear with the freshwater booklet and any Arizona reciprocal rules that apply on the river.
Daily bag limit
See the 2026 Freshwater Sport Fishing Guide Colorado River / district tables for trout and other species bags.
Minimum size
See the freshwater guide for this district.
Gear restrictions
See the freshwater guide for this district (methods, bait, and boundary rules).
Identification
The brook trout has a dark green to brown color, with a distinctive marbled pattern (called vermiculation) of lighter shades across the flanks and back and extending at least to the dorsal fin, and often to the tail. A distinctive sprinkling of red dots, surrounded by blue halos, occurs along the flanks. The belly and lower fins are reddish in color, the latter with white leading edges. Often, the belly, particularly of the males, becomes very red or orange when the fish are spawning