Rio Grande

Optimal

New Mexico

Current Flow252 CFS Falling
Guides20
Sections2

Current Conditions

252CFSFalling over 24hr

The Rio Grande is running at 252 CFS — ideal conditions. Expect clear water and excellent dry fly opportunities.

Last updated: Mar 30, 2026, 3:30 PM from USGS gauge 08276500 (Rio Grande near Taos)

7-Day Flow Trend

Optimal Fishable Marginal Blown Out

Flow thresholds: Optimal 200600 CFS | Fishable to 1500 CFS | Marginal to 2500 CFS

About the Rio Grande

The Rio Grande through northern New Mexico offers diverse fishing from the remote Taos Box gorge to the gentle waters near Pilar. Wild brown trout in the canyon sections and stocked rainbows make this a year-round destination.

Hatch Chart

InsectJanFebMarAprMayJunJulAugSepOctNovDec
Caddis
Elk Hair Caddis #14-16
Stonefly
Stimulator #8-10
Blue-Winged Olive
BWO Parachute #18
Hopper
Dave's Hopper #8
Major Moderate MinorCurrent month highlighted

Active Hatches — March

Blue-Winged Olive(moderate)

Patterns: BWO Parachute #18, RS2 #20

River Sections

Taos Box

wade access
Optimal

252 CFS

Remote canyon section with Class IV rapids and wild brown trout. Strenuous access but rewarding fishing.

Orilla Verde to Pilar

wade access
Optimal

252 CFS

More accessible canyon water below the Box. Good wading with mix of wild and stocked trout.

Guides on the Rio Grande(20)

These fishing guides list the Rio Grande as one of their home waters.

View all 20 guides in New Mexico

Frequently Asked Questions

What is the best time to fish the Rio Grande?+

The Rio Grande fishes well from spring through fall. Peak dry fly season is typically June through September. The best hatches occur during summer months with PMDs and caddis. Fall brings excellent streamer fishing and fewer crowds.

What flies work on the Rio Grande in March?+

In March, the Rio Grande sees Blue-Winged Olive activity. Top patterns include BWO Parachute #18. Always carry a selection of nymphs as well.

How many fishing guides operate on the Rio Grande?+

Outguided lists 20 fishing guides who operate on the Rio Grande. These guides offer local knowledge of hatches, access points, and current conditions that can significantly improve your experience.

What is the current flow on the Rio Grande?+

The Rio Grande's flow data is updated every 30 minutes from USGS gauge stations. Check the top of this page for current CFS readings, fishability status, and a 7-day flow trend chart. Optimal fishing flows are 200–600 CFS.

What fish species are in the Rio Grande?+

The Rio Grande primarily holds wild brown trout and rainbow trout. Fish sizes vary by section, with tailwater reaches typically holding larger fish.

Quick Conditions

StatusOptimal
Flow252 CFS
Trend Falling
Guides20

Fishability Thresholds

Optimal200600 CFS
Fishableto 1500 CFS
Marginalto 2500 CFS
Blown Out2500+ CFS

USGS Gauges

Rio Grande near Taos

Station #08276500

Rio Grande at Otowi Bridge

Station #08313000