Lon Hagler Reservoir fishing
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Lon Hagler Reservoir Fishing Regulations

What to check before fishing at Lon Hagler State Wildlife Area in Larimer County, Colorado.

Fishing at Lon Hagler Reservoir

Lon Hagler State Wildlife Area provides access to Lon Hagler Reservoir, a public body in Larimer County, Colorado. Species-specific size and bag limits can vary by water body and change seasonally, so always confirm current rules for Lon Hagler Reservoir specifically before you fish — statewide defaults don't always apply to every lake, river, or stretch of coast.

Check current regulations for Lon Hagler 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 Lon Hagler Reservoir specifically
  • Whether Lon Hagler 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)