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Grass Valley Reservoir Fishing Regulations
What to check before fishing at Harvey Gap State Park in Garfield County, Colorado.
Fishing at Grass Valley Reservoir
Harvey Gap State Park provides access to Grass Valley Reservoir, a public body in Garfield County, Colorado. Species-specific size and bag limits can vary by water body and change seasonally, so always confirm current rules for Grass Valley Reservoir specifically before you fish — statewide defaults don't always apply to every lake, river, or stretch of coast.
Check current regulations for Grass Valley Reservoir →Fishing License
Fishing in Colorado is regulated by the Colorado Parks and Wildlife. Most anglers 16 and older need a valid license, with some exceptions for residents, youth, or shore-based fishing depending on the state.
Get a Colorado fishing license →Before you cast a line, check:
- Size and bag limits for your target species on Grass Valley Reservoir specifically
- Whether Grass Valley Reservoir has any special regulations (slot limits, catch-and-release zones, closed seasons)
- Your license requirements based on age, residency, and whether you're fishing from the bank or a boat
- Any required stamps or endorsements for specific species (e.g. trout, saltwater)