Colorado River Lees Ferry Arizona
Colorado River Lees Ferry Arizona is what this guide is built around: where to find the best western trout water, when each river fishes, and how to plan a trip around real conditions. We focus on rivers that produce consistently across the Rocky Mountain West, year after year, for wade and float anglers alike.
The rivers
Standouts include Montana's Madison, Missouri, and Bighorn; Idaho's Henry's Fork and South Fork of the Snake; Colorado's Frying Pan and Roaring Fork; Wyoming's North Platte and Green; and Utah's Green River below Flaming Gorge. Each earns its reputation through a mix of cold, clean flows, dense insect life, and strong wild or well-established holdover trout populations. Bottom-release tailwaters fish year-round and offer technical, rewarding fishing, while the classic freestone rivers come alive once spring runoff clears and the summer hatches stack up.
When to go
Spring delivers Blue Wing Olives and the first caddis; summer is the peak, with Pale Morning Duns, golden stoneflies, caddis, and terrestrials keeping fish looking up; fall brings Mahogany Duns and aggressive, pre-winter browns. Tailwaters stretch the calendar into winter with dependable midge fishing. Match your trip to the hatch you most want to fish, and you will rarely be disappointed.
Plan your trip
Check flows and water temperature before committing, line up access or a local guide for unfamiliar water, and always confirm current regulations and licensing for the specific stretch you intend to fish. For live flows and water temperature we cross-check USGS Water Data before every trip, then confirm with recent local reports. For the latest numbers see our fishing reports and current conditions pages, and browse related hatch guides to plan your timing.
Gear and flies to bring
A 9-foot 5-weight rod, a floating line, 4X to 5X leaders, and a box covering mayflies, caddis, stoneflies, midges, and a few terrestrials handle most western trout situations. Add split shot and indicators for nymphing, a couple of streamers for off-color water, polarized sunglasses, and waders suited to the season. Always carry a current license and confirm local regulations before you fish.
Plan around the colorado river lees ferry arizona timing that fits your dates, check live flows the night before, and you will be set up for a productive day on the water.
Colorado River — Lees Ferry, Arizona
Glen Canyon Tailwater — World-class rainbow trout in the heart of the desert
Lees Ferry is one of the most unusual and extraordinary trout fisheries in North America. Located 15 miles below Glen Canyon Dam in the Arizona canyon country, this 15-mile reach of the Colorado River holds enormous rainbow trout in desert landscape that looks nothing like traditional trout habitat. Red canyon walls, blue water, and fish that average 16–18 inches make this a bucket-list destination.
The fishery exists entirely because of the dam. Glen Canyon Dam releases cold, clear water from the bottom of Lake Powell year-round — typically around 47–50°F — creating ideal habitat for trout in a climate that would otherwise support only warmwater species. The river runs wide, fast, and powerful through open canyon, demanding strong wading technique and long casts.
Lees Ferry is fundamentally a midge and Blue-Winged Olive fishery. Unlike freestone rivers with diverse insect life, the tailwater environment below Glen Canyon Dam is dominated by midges (Chironomidae) that hatch year-round in extraordinary numbers. The BWO hatch is exceptional from October through May, creating the best dry fly opportunities on an otherwise subsurface fishery.
Access to Lees Ferry is via the paved road from the Navajo Bridge on US-89A. The 15-mile reach is managed entirely by Arizona Game and Fish and requires a valid Arizona fishing license. Walk-wade fishing access is excellent throughout the open canyon reach.
Lees Ferry Launch Ramp
Primary access point. Paved parking and boat ramp. Walk upstream or downstream from the ramp for wade fishing. Most pressure within 2 miles of ramp.
Spencer Trail Access
Historic trail provides access to upper sections. Longer walk rewards with less pressure. 4WD not required — paved road to trailhead.
Cathedral Wash
Lower access point at the bottom of the fishable reach. Walk up from Cathedral Wash for the least-pressured water. Shorter day required.
Rainbow Trout
The only trout species in significant numbers. Fish averaging 16–20 inches with exceptional specimens over 24 inches caught regularly. Fed almost exclusively on midges and scuds. Extremely strong fish in the fast Colorado current.
Brown Trout
Present in small numbers. Larger on average than rainbows. More commonly encountered in slower eddy water. Subsurface fishing with scud and sowbug patterns most effective.
Lees Ferry fish are educated. Use the smallest midge patterns in your box first — size 24 and 26 hooks outfish size 20s by a wide margin in clear water.
The best dry fly fishing occurs October through May during BWO hatches. Look for surface feeding during overcast conditions, 10am–2pm.
San Juan Worms and egg patterns are consistently the most productive subsurface patterns — don't ignore them in favor of 'prettier' flies.
The current is genuinely powerful — use tungsten bead nymphs to get down quickly. Strike indicators require adjustment throughout the drift.