Colorado species

Lake Trout in Colorado

lake trout under the 2026 CPW chart.

  • 4 a daylimit
  • 50 lb 5.6 ozrecord
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Photo of the species, not a Colorado water: Knepp Timothy, U.S. Fish and Wildlife Service, Public domain

Colorado fish

The Colorado file on Lake trout

CPW files lake trout with the trout group, and the 2026 statewide chart gives it 1 chart row. In waters statewide waters the chart sets daily bag 4, possession 8, in aggregate.

Weight record: 50 lb 5.6 oz, Blue Mesa Reservoir, 2007. Look for it on 31 water pages that list species. The special regulations mention it 13 times, led by Grand County.

4 a daystatewide chart
50 lb 5.6 ozstate record
13special rules naming it
31water pages
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Limits

Keeping lake trout legally in Colorado

Chart rowZoneLimitSeason
Trout, Arctic Char, Grayling, Salmon, Mountain Whitefish (except kokanee)StatewideDaily bag 4, possession 8, in aggregateOpen all year, day and night, unless a special regulation says otherwise

2026 Colorado Fishing brochure (Colorado Parks and Wildlife), p. 10, retrieved October 25, 2026; the chart applies on every water not listed in the special regulations.

Colorado license and limits

Records

The Colorado record lake trout

On the scale

EntryWeightLengthAnglerWaterCountyYear
Lake Trout50 lb 5.6 oz44.25 inDonald WalkerBlue Mesa ReservoirGunnison2007

Length category

EntryLengthAnglerWaterYear
Lake Trout41.25 inScott EnloeBlue Mesa Reservoir2024

Heritage lengths through 2019

EntryLengthAnglerWaterYear
Lake Trout46.875 inRyan VanLanenMorrow Point Reservoir

A new length record must beat the current one, or 32 inches where no record exists (the Master Angler qualifying length).

CPW Fishing Awards and Records and the 2026 brochure pages 6 and 7, retrieved October 25, 2026.

Special rules

Colorado waters that change the lake trout limit

Water and sectionCountyRules
Big Creek Lake (Lower)JacksonBag and possession limit for lake trout and/or splake is 3. Only 1 may be longer than 26 inches.
Blue Mesa ReservoirGunnisonIce-fishing shelters must be portable. No bag or possession limit for lake trout. Only 1 lake trout longer than 32 inches may be taken per day. Snagging kokanee permitted Nov. 1–Dec. 31. Bag limit for kokanee is 5. …
Grand LakeGrandIce-fishing shelters must be portable. Bag and possession limit for lake trout is 4.
Green Mountain ReservoirSummitBag and possession limit for lake trout is 8. Snagging kokanee permitted Sept. 1–Dec. 31.
Lake GranbyGrandIce-fishing shelters must be portable. Gaffs and tail snares prohibited. Bag and possession limit for lake trout is 12, only one of which may be greater than 24 inches. Bag and possession limit for other trout species …
Mount Elbert Forebay ReservoirLakeBag and possession limit for lake trout is 1. Lake trout 22–34 inches long must be returned to the water immediately.
Crystal, North Catamount & South Catamount reservoirs:El PasoBag and possession limit for lake trout is 2.
Crystal, North Catamount & South Catamount reservoirs:TellerBag and possession limit for lake trout is 2.
Rampart ReservoirEl PasoBag and possession limit for lake trout is 2. Ice fishing prohibited.
Taylor Park ReservoirGunnisonBag and possession limit for lake trout is 3.
Turquoise ReservoirLakeBag and possession limit for lake trout is 2.
Twin LakesLakeBag and possession limit for lake trout is 1. Lake trout 22–34 inches long must be returned to the water immediately.
Williams Fork ReservoirGrandNorthern pike 26–34 inches must be returned to the water immediately. Use of spearfishing, archery, slingbows and gigs for the take of northern pike is prohibited. Bag and possession limit for lake trout is 8.

Special regulations as printed in the 2026 Colorado Fishing brochure (CPW, season March 1, 2026 to March 31, 2027), pp. 11 to 39, checked against CPW Chapter W-1 (as approved 13 November 2025); retrieved October 2026.

All Colorado special regulations

Stocking

lake trout and the weekly stocking list

CPW posts a weekly list of waters stocked with catchable trout (about 10 inches) without naming species; 2,425 listings cover 2024 to 2026.

CPW Fish Stocking Report and its archive, retrieved October 25, 2026.

Colorado trout stocking report

Where to look

Spots across the state where lake trout show up

Ponds and reservoirs with lake trout

  • Blue Mesa Reservoir9,087 acres
  • Lake Granby7,046 acres
  • Green Mountain Reservoir2,111 acres
  • Taylor Reservoir2,041 acres
  • Turquoise Lake1,756 acres
  • Twin Lakes Lower1,708 acres
  • Williams Fork Reservoir1,552 acres
  • Shadow Mountain Reservoir1,338 acres
  • Carter Reservoir1,122 acres
  • Ruedi Reservoir1,037 acres
  • Twin Lakes Upper764 acres
  • Morrow Point Reservoir755 acres
  • Grand Lake486 acres
  • Rampart Reservoir446 acres
  • Gross Reservoir421 acres
  • Big Creek Lake Lower362 acres
  • Lake San Cristobal327 acres
  • Mount Elbert Forebay276 acres
  • Crystal Reservoir254 acres
  • Chambers Lake243 acres
  • Catamount Reservoir North235 acres
  • Big Creek Lake Upper111 acres
  • Crystal Creek Reservoir101 acres
  • Catamount Reservoir South90 acres

CPW Boatable Waters and Quality Waters species fields and state record waters; largest waters first.

In photos

High-country water around Lake Trout, photographed

South Platte River, Colorado
South Platte River
Photo: Jay Miller from Fly to Eleven Mile Canyon just outside Colorado Springs, CC BY 2.0
McPhee Reservoir, Colorado
McPhee Reservoir
Photo: Jeffrey Beall, CC BY 4.0
Blue Mesa Reservoir, Colorado
Blue Mesa Reservoir
Photo: Chris Light, CC BY-SA 4.0
John Martin Reservoir, Colorado
John Martin Reservoir
Photo: Jaywm, CC BY-SA 4.0
Answers

Lake trout across Colorado: common questions

How many lake trout may I keep in Colorado?

Daily bag 4, possession 8, in aggregate (statewide); special regulations can change it on listed waters.

Does CPW keep a record for lake trout?

50 lb 5.6 oz from Blue Mesa Reservoir, by Donald Walker in 2007.

Which water pages on this site carry lake trout?

31 water pages here list it, starting with Blue Mesa Reservoir, Lake Granby and Green Mountain Reservoir.

Which Colorado waters single out lake trout?

Yes; 13 entries name it, for example Big Creek Lake (Lower) in Jackson County.

Which category do lake trout fall under in Colorado?

Trout on the CPW species list; the chart zones that apply are statewide.

Can I fish for lake trout all year in Colorado?

Colorado waters are open all year, day and night, unless a special regulation closes them; 13 special-regulation entries mention it.

Which Colorado license covers lake trout?

Colorado sells no separate trout stamp; a CPW fishing license covers trout ($44.87 for adult residents, $124.01 for nonresidents), and anglers 16 and older need one.

How do I submit a lake trout to CPW?

Photograph it on a measuring device with a witness and release it; it must beat the current record, or 32 inches where none exists.

Plan a lake trout outing

Open a lake or stream above and read its rules first.