Recent flow
RiverReports gauge

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No access method is recommended today. Review the live conditions below before choosing another river or day.
Rating updatedRiver local time:
USGS water temperature is about 70.3F. USGS marks the temperature data provisional and may revise it. Do not pressure trout or salmonids in warm water.
Water temperature above salmonid stress threshold
NWS air forecast near
RiverReports gauge

Showing the available RiverReports chart while the current structured flow series loads. Check the chart on RiverReports Opens in a new tab.
Mostly Clear
The National Weather Service forecast is temporarily unavailable.
RiverReports gauge: Colorado River at Lees Ferry
Seasonal starting points, not a live hatch report. Match what you see on the water.
Also try scuds, light nymph rigs
Also try scuds, heavier nymph rigs
Each fly name opens its matching Fly Box guide.
Expect clear-water trout fishing where small changes in dam release, light, wind, and boat traffic can change the best tactic. Low, clear, bright water favors long leaders, small flies, and careful presentations. Higher or changing releases make edge fishing, heavier nymph rigs, and boat planning more important.
Wade and walk-in options can be easier, but clear water demands longer leaders, smaller flies, and careful angles.
Move with the water, stay off low bars that may flood, and fish fresh edge water rather than standing in changing current.
Boat or backhaul logistics become more important. Fish protected banks, softer seams, and shelves instead of forcing unsafe wades.
Use small midges, scuds, and slim nymphs with clean drifts. Sight-fishing and long drifts often matter more than changing flies every cast.
No access method is recommended in today's conditions. Review the live river and weather checks before making another plan.
Not recommended today. Recheck the river, weather, and access before planning another trip.
Not recommended today. Recheck the river, weather, and access before planning another trip.
Not recommended today. Recheck the river, weather, and access before planning another trip.
Is Colorado River worth the trip today? Check flow, weather, hatches, access, and rules for Arizona before you go.
The Colorado River at Lees Ferry is one of Arizona's most important trout trips because cold dam releases, clear water, canyon access, and special fishing rules all meet in one place. The best plan starts with flows, water temperature, and whether you are walking in or using a boat.
USGS water temperature is about 70.3F. USGS marks the temperature data provisional and may revise it. Do not pressure trout or salmonids in warm water.
USGS shows 8,630 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1922-2025, 104 readings) show a typical middle range of 6,460 cfs to 13,100 cfs. Flow is within the typical range for this date, so weather, temperature, and access become the next checks.
Fall: Often a comfortable season for mixed walk-in and boat plans, with midges, scuds, worms, and small streamers all worth carrying.
No active NWS alert was returned for this forecast point.
Skip or scale back when releases are changing faster than your access plan can handle, canyon wind is unsafe for your craft, heat and sun exposure are extreme, the backcountry permit or boating setup is not squared away, or rule boundaries are unclear.
Use the Lees Ferry release trend and water temperature together. Stable releases are the easiest planning window. Rising or changing releases should move anglers off low bars and toward safer edges, boat control, or a later check.
Skip or scale back when releases are changing faster than your access plan can handle, canyon wind is unsafe for your craft, heat and sun exposure are extreme, the backcountry permit or boating setup is not squared away, or rule boundaries are unclear.
Decide walk-in versus boat first. Walk-in anglers should start with legal bank access near Lees Ferry. Boat anglers should verify permit, ramp, PFD, wind, and release timing before choosing fly weight or drift length.
If Lees Ferry is poor because of wind, releases, permits, or heat, compare smaller Arizona trout waters such as Canyon Creek, Black River, or the Little Colorado only after checking their current rules and access.
Use these places as starting points. Open the access link below and check posted signs before you park or enter.
Verify current NPS and Arizona rules before fishing. NPS lists the Glen Canyon Dam to beginning of Paria Riffle reach as artificial fly and lure only, barbless hooks only, and a 2-rainbow-trout daily limit. Rainbow trout taken from this portion must be killed and retained as part of the bag limit or immediately released. The area immediately below Glen Canyon Dam, posted with buoys, is closed to entry.
NPS lists a public launch ramp at Lees Ferry. The ramp is the main staging point for upriver boat and backhaul plans.
NPS states permits are not required for visitors only hiking or fishing along the riverbank.
Watercraft users in this area need a Lees Ferry Backcountry Permit from the self-service kiosks near the launch area.
Important rule boundary. NPS separates rules from Glen Canyon Dam to the beginning of Paria Riffle and from Paria Riffle to Navajo Bridge.
Useful travel and orientation points. NPS notes services at Marble Canyon and recommends stopping at Navajo Bridge.
Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.
Check what is allowed, where the rule applies, and whether the river is open.
Check the latest river reading and forecast before you leave.
Check public entry points, land rules, and seasonal access changes.
Use these links for stocking, safety, and other local details.
Check what is allowed, where the rule applies, and whether the river is open.
Open the current rules and check the river section, season, and special limits.
Open the current rules and check the river section, season, and special limits.
Check the latest river reading and forecast before you leave.
Open this page and check the latest safety advice before your trip.
Open this river reading to check the latest level, flow, and update time.
Open this page for more river information and check when it was last updated.
Open this river reading to check the latest level, flow, and update time.
Check public entry points, land rules, and seasonal access changes.
Open the land or access page, then check signs before you park or enter.
Use these links for stocking, safety, and other local details.
Open this page for more river information and check when it was last updated.
What was checked: This report is maintained from official flow, temperature, weather, NPS access, and Arizona/NPS regulation sources, then translated into clear Lees Ferry fishability guidance.
Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.
First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.
Yes. NPS describes the cold clear water between Glen Canyon Dam and Lees Ferry as a world-class trout fishery. It is a technical tailwater, so flows, clarity, rules, and access style matter.
Use RiverReports for a quick chart and USGS 09380000, Colorado River at Lees Ferry, for official streamflow, gage height, and water temperature.
Bank-only hiking and fishing do not require the Lees Ferry Backcountry Permit according to NPS. Visitors using any watercraft between Glen Canyon Dam and Lees Ferry do need the permit.
Bring tiny midges, scuds, pheasant tails, slim nymphs, San Juan worms, small eggs, soft hackles, and a few small streamers.