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For the brook trout herePiscifun Carbon XT ultralight spinning reel25% OFFSale $59.99 $79.99
Gross Reservoir 15 mi
Photo: SOTMUS, CC BY-SA 4.0 
Lake Granby 15 mi
Photo: Jeffrey Beall, CC BY 4.0 
Grand Lake 17 mi
Photo: Faith Warehime, CC BY-SA 4.0 
Shadow Mountain Reservoir 17 mi
Photo: Tony Webster, CC BY 2.0
Colorado lakes and reservoirs
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Long Lake, Boulder County Fishing
A 41-acre Colorado lake in Boulder County at 10,526 feet.
Pick for brook troutPiscifun Carbon X ultralight spinning reel28% OFFSale $57.99 Photo, nearby stand in for Long Lake, Boulder County: Jeffrey Beall, CC BY 4.0
Boulder County
Getting to know Long Lake, Boulder County
Its mapped shoreline gives Long Lake, Boulder County close to 41 acres, all charted in Boulder County. At around 10,526 feet, it is high-country water. CPW files it under Indian Peaks Wilderness Area. The closest town on the Census list is Ward, some 4 miles away. It belongs to the CPW Northeast Region.
Its fish on the CPW roster: brook trout and native cutthroat trout. CPW sets the boating rule as Non-motorized. The Fishing Atlas rates access as medium and fishing pressure as low. Through the ice season: ice fishing listed as yes.
41acres
10,526feet elevation
0boat ramps
2species listed
CPW Fishing Atlas 2025 layers (waterbody outline, Boatable Waters, fishing locations), Census places, retrieved October 25, 2026.
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Which fish Long Lake, Boulder County holds
These Long Lake, Boulder County species rest on CPW listings and records, not a full net survey.
CPW Boatable Waters species field, CPW state records and stocking report, retrieved October 25, 2026.
Access
Ramps CPW maps at Long Lake, Boulder County
There is no mapped ramp on Long Lake, Boulder County; see the list of close ones.
Fishing access points at Long Lake, Boulder County
- Long Lake fishing access near Wardmedium access, 10,526 ft
Backup boat ramps near Long Lake, Boulder County
- Arapaho Bay Ramp on Lake GranbyLake Granby, 10 miles northwest
- Sunset Point Ramp on Lake GranbyLake Granby, 16 miles west
- Green Ridge Ramp on Shadow Mountain ReservoirShadow Mountain Reservoir, 16 miles northwest
- Stillwater Ramp on Lake GranbyLake Granby, 17 miles northwest
- Hilltop Ramp on Shadow Mountain ReservoirShadow Mountain Reservoir, 17 miles northwest
- Boulder City Reservoir boat rampBoulder City Reservoir, 20 miles east
CPW boat ramp and Fishing Atlas fishing location layers, retrieved October 25, 2026.
Limits
Fish legal to carry home from Long Lake, Boulder County
| Species | Bag and possession | Season |
|---|---|---|
| Trout, arctic char, grayling, salmon and whitefish (not kokanee) | Daily bag 4, possession 8, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Brook trout 8 inches or less (bonus) | Daily bag 10, possession 10 | Open all year, day and night, unless a special regulation says otherwise |
| Kokanee salmon | Daily bag 10, possession 10 | Open all year, day and night, unless a special regulation says otherwise |
| Walleye, saugeye and sauger | Daily bag 5, possession 5, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Largemouth, smallmouth and spotted bass | Daily bag 5, possession 5, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| White bass, striped bass and wiper | Daily bag 10, possession 10, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Channel, flathead and blue catfish | Daily bag 10, possession 10, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| White and black crappie | Daily bag 20, possession 20, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Bluegill and other sunfish | Daily bag 20, possession 20, in aggregate | Open all year, day and night, unless a special regulation says otherwise |
| Yellow perch | Daily bag 20, possession 20 | Open all year, day and night, unless a special regulation says otherwise |
| Tiger muskie | Daily bag 1, possession 1; at least 36 inches long | Open all year, day and night, unless a special regulation says otherwise |
| Northern pike and bullhead | No bag or possession limit | Open all year, day and night, unless a special regulation says otherwise |
The drainage column of the limits chart puts Long Lake, Boulder County east of the Continental Divide. Waters stay open day and night all year in Colorado; the chart rows set the bag at Long Lake, Boulder County.
Statewide bag and possession chart, 2026 Colorado Fishing brochure (CPW, season March 1, 2026 to March 31, 2027), p. 10, retrieved October 25, 2026.
Compare
Long Lake, Boulder County beside its neighbors
| Lake | Distance | Acres | Elevation ft | Boat ramps | On the trout report |
|---|---|---|---|---|---|
| Long Lake, Boulder County | 41 | 10,526 | 0 | ||
| Brainard Lake | under a mile northeast | 16 | 10,340 | 0 | |
| Mitchell Lake, Big | 1 mile north | 13 | 10,699 | 0 | |
| Isabelle Lake | 1 mile west | 34 | 10,873 | 0 | |
| Left Hand Reservoir | 2 miles east | 97 | 10,650 | 0 | |
| Blue Lake, Boulder County | 2 miles northwest | 23 | 11,310 | 0 |
CPW Fishing Atlas, ramp layer and stocking report, retrieved October 25, 2026.
Nearby
Around Long Lake, Boulder County on the map
Reservoirs and ponds near Long Lake, Boulder County
- Brainard Lakeunder a mile northeast
- Mitchell Lake, Big1 mile north
- Isabelle Lake1 mile west
- Left Hand Reservoir2 miles east
- Blue Lake, Boulder County2 miles northwest
Stores that stock up Long Lake, Boulder County trips
- Devil's Thumb Fly Fishing Centerfly shop, Tabernash, 13 miles
- Winter Park Flyfisherbait and tackle shop, Fraser, 14 miles
- Beacon Landing Marinabait and tackle shop, Grand Lake, 17 miles
- Stoney River Outfittersbait and tackle shop, Boulder, 17 miles
- Grand Lake Marinamarina, Grand Lake, 17 miles
- Indian Peaks Marinamarina, Granby, 17 miles
Hiring a guide for Long Lake, Boulder County
- Arbor Anglersfishing guide, Lafayette, (303) 562-7202
- Front Range Anglersfishing guide, Boulder, (303) 494-1375
- Flatirons Fly Shop, Inc.fly fishing guide, Boulder
- Laughing Grizzly Fly Shop, Inc.fly fishing guide, Longmont
Nearest towns to Long Lake, Boulder County
- Nederland9 miles
- Fraser15 miles
- Winter Park17 miles
Long Lake, Boulder County on the county pages
- Boulder Countyseat: Boulder
Piscifun
Piscifun gear to pack for Long Lake, Boulder County
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In photos
Photo views of fishing water near Long Lake, Boulder County
Photo: SOTMUS, CC BY-SA 4.0
Photo: Jeffrey Beall, CC BY 4.0
Photo: Faith Warehime, CC BY-SA 4.0
Photo: Tony Webster, CC BY 2.0
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Answers
Colorado anglers ask this about Long Lake, Boulder County
In what part of the state is Long Lake, Boulder County?
Boulder County, CPW Northeast Region, about 4 miles from Ward.
Is Long Lake, Boulder County a big reservoir?
About 41 acres, at about 10,526 feet.
Can a trailered boat get onto Long Lake, Boulder County from a mapped ramp?
Not mapped; carry in or use a nearby ramp.
Are trout part of the fishery at Long Lake, Boulder County?
Expect brook trout and native cutthroat trout.
What bag limit does the CPW chart set at Long Lake, Boulder County?
Trout, arctic char, grayling, salmon and whitefish (not kokanee): Daily bag 4, possession 8, in aggregate.
Is a CPW license required to fish Long Lake, Boulder County?
Fishing two lines at once takes the $14.24 second-rod stamp on top of the license; adult residents pay $44.87 for the license and nonresidents $124.01.
Has CPW listed Long Lake, Boulder County for stocking recently?
No listing on the CPW trout report since 2024.
Which store on the list is nearest Long Lake, Boulder County?
Devil's Thumb Fly Fishing Center, about 13 miles away.
Is Long Lake, Boulder County an ice fishing spot?
Its winter entry reads ice fishing listed as yes; drill test holes first.
Put Long Lake, Boulder County on this season's list
License prices and the full limits chart are on one page.