Rio Grande Basin

The Rio Grande spans two states and two distinct fishing personalities. In New Mexico, the Rio Grande Gorge near Taos drops into a 650-foot basalt canyon — one of the most dramatic trout fisheries in the Southwest. In Colorado, the upper mainstem near Creede and the South Fork open into wide freestone water with legendary dry fly hatches.

Timing is everything on the Rio Grande. The two sections peak at different times of year, and knowing the seasonal windows is the difference between a bucket-list trip and a skunked one.

Best Time by Season

Spring (March–May) — Taos Box Window

Before runoff pushes flows beyond wading, the Rio Grande Gorge near Taos fishes exceptionally well. BWOs hatch on cold, overcast days through April and into May. The accessible lower gorge below Orilla Verde offers wade access to quality brown trout and Rio Grande cutthroat. This is also the prime window for NM tributary cutthroat in the upper system. Act early — high water typically arrives by mid-May.

Summer (June–August) — Go High, Go Colorado

Once the Taos gorge blows out with snowmelt, pivot north to the upper Colorado sections. The stretch near Creede and the South Fork of Del Norte holds at fishable levels longer at elevation. Late June brings the legendary salmonfly hatch — giant stoneflies that pull the biggest brown trout topwater. PMDs hatch consistently through July. Drift boats dominate the South Fork to Del Norte run, where anglers pound grassy banks with large dry flies.

Fall (September–October) — Prime Season

Both states come alive in fall. Water drops, brown trout are pre-spawn aggressive, and BWOs hatch daily on overcast afternoons. The Taos gorge becomes accessible again after summer flows recede. The Red River and other NM tributaries see cutthroat stack up. In Colorado, Creede locals call October the "secret season" — crowds are gone, fish are hungry, and the dry fly fishing is as good as it gets.

Key Sections

• Rio Grande Gorge / Taos Box (NM): Spectacular basalt canyon with wade access via BLM Orilla Verde. Spring and fall windows only — summer flows are too high. Base camp: Taos or Espanola.
• Upper Rio Grande near Creede (CO): Gold Medal water with miles of wade access and excellent float fishing in summer. Base camp: Creede.
• South Fork to Del Norte (CO): Prime drift boat run. Big browns, big dry flies. Best June–September. Base camp: Del Norte or Alamosa.
• Conejos River (CO): Technical tailwater-freestone hybrid below Platoro Reservoir. Year-round fishing, picky fish, spectacular canyon setting.

Key Hatches

• Salmonfly & Golden Stone (late June, CO sections): The bucket-list event. Giant stoneflies bring the biggest brown trout to the surface.
• PMDs (July–August, CO): Consistent summer hatches on upper Colorado sections. Size 16–18.
• Green & Brown Drakes (July, CO): Large mayflies that emerge after runoff subsides — prime time for trophy browns on dry flies.
• BWOs (spring and fall, both states): The workhorse hatch. Best on cold, overcast days. Critical for the Taos Box spring window and the fall season on both sides of the border.
• Hoppers (August–September): San Luis Valley grasslands load the banks. Fish close to shore with large terrestrials.