Colorado fishing maps / Boulder County

Fishing in Boulder County, Colorado

8 lakes and rivers in Boulder County have free interactive depth charts here. The deepest is Gross Reservoir at 299 ft. Open any water for species-rated spots, seasonal bite windows and bait picks.

• Barker Reservoir 118 ft
• Bob Lake 71 ft
• Boulder City Reservoir 20 ft
• Button Rock Res 151 ft
• Diamond Lake Upper 17 ft
• Gross Reservoir 299 ft
• Waneka Lake 13 ft
• Woodland Lake 7 ft

More water across Colorado: Delta (8) · Grand (6) · Jefferson (5) · Larimer (6) · Mesa (6) — or all Colorado fishing maps.