Colorado Fishing

Big Ruby Reservoir

The prized waters of Big Ruby Reservoir in western Colorado support thriving Largemouth Bass, Crappie, Catfish populations. Big Ruby Reservoir is located near western Colorado at coordinates 37.70, -107.14. The prized reservoir offers depth variation and structure that Largemouth Bass rely on. Local anglers frequently report success with Largemouth Bass, Crappie, Catfish at Big Ruby Reservoir.

Reservoir Colorado 37.7000, -107.1400
Updated 2026-04-29

Location

View on Google Maps 37.7000, -107.1400

Target Species

Largemouth BassLargemouth BassCrappieCrappieCatfishCatfish

Fishing Tips

  • Focus on dam structure during sunset hours when Largemouth Bass are active.
  • Focus on main lake channel during sunset hours when Largemouth Bass are active.
  • Focus on main lake channel during late evening when Largemouth Bass are active.

Fishing Techniques for Big Ruby Reservoir

Medium-action spinning gear paired with 8-12 lb test line covers most situations at this reservoir. Soft plastics, crankbaits, and live bait rigs all produce consistent results depending on conditions. For Largemouth Bass, try matching the local forage — shad, bluegill, or crawfish patterns work well here.

What to Expect at Big Ruby Reservoir

Fishing pressure is moderate year-round, peaking on weekends and holidays from spring through fall. Weekday trips typically mean fewer crowds and better fishing. The ecosystem here supports healthy populations of Largemouth Bass and Crappie, with good catch rates for prepared anglers.

Regulations

A valid Colorado fishing license is required. Check Colorado Parks and Wildlife for current regulations.

Fishing Tips for Big Ruby Reservoir

Baldy Lake

Black Mountain Lake

Archuleta Lake

Frequently Asked Questions

Largemouth Bass here respond well to both live bait and artificial lures. Focus on structure.

Many anglers access Big Ruby Reservoir by boat. Verify local access restrictions before your trip.

Essential items: fishing license, appropriate tackle for Largemouth Bass, sun protection, water.