Freshwater · Colorado River
Trout - Brown
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 brown trout is a medium-sized fish, growing to 20 kg (44 lb) or more and a length of about 100 cm (39 in) in some localities, although in many smaller rivers, a mature weight of 1.0 kg (2.2 lb) or less is common. S. t. lacustris reaches an average length of 40–80 cm (16–31 in) with a maximum length of 140 cm (55 in) and about 60 pounds