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Horsetooth Reservoir 13 mi
Photo: Lvaughn7, CC BY-SA 4.0 
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Colorado lakes and reservoirs
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Lon Hagler Reservoir Fishing
A 175-acre Colorado reservoir in Larimer County at 5,147 feet.
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Larimer County
A quick portrait of Lon Hagler Reservoir
Measured from the CPW water layer, Lon Hagler Reservoir is a reservoir of some 175 acres in Larimer County. Expect thin air: this water sits near 5,147 feet. The surrounding property is Lon Hagler SWA, per CPW. Loveland is the nearest Census place to the shore, near 6 miles off. Fisheries staff of the CPW Northeast Region oversee it.
The CPW species field names bluegill, channel catfish, common carp, black crappie, green sunfish and largemouth bass. CPW maps 2 boat ramps on it. Craft permitted, per CPW: Motor boats (gasoline). Atlas notes: easy to reach, high pressure. On ice: ice fishing listed as yes.
175acres
5,147feet elevation
2boat ramps
12species listed
CPW Fishing Atlas 2025 layers (waterbody outline, Boatable Waters, fishing locations), Census places, retrieved October 25, 2026.
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What anglers catch at Lon Hagler Reservoir
Listed fish for Lon Hagler Reservoir, each linked where Colorado has a species page.
Bluegill Channel catfish Common carp Black crappie Green sunfish Largemouth bass Rainbow trout Smallmouth bass Tiger muskie Walleye Yellow perch Trout
CPW Boatable Waters species field, CPW state records and stocking report, retrieved October 25, 2026.
Access
Ramp access for Lon Hagler Reservoir
- Lon Hagler boat ramp near Lovelandboat ramp, universal-water ramp, CDOW
- Lon Hagler boat ramp near Lovelandboat ramp, universal-water ramp, CDOW
Mapped access at Lon Hagler Reservoir
- Lon Hagler Reservoir fishing access near Loveland, Lon Hagler SWA 2accessible fishing area
- Lon Hagler Reservoir fishing access near Loveland, Lon Hagler SWAaccessible pier, easy access, stocked: catchable trout and warmwater, 5,147 ft
Boat ramps in reach of Lon Hagler Reservoir
- Boedecker Reservoir boat rampBoedecker Reservoir, 2 miles northeast
- Lonetree Reservoir boat ramp near LovelandLonetree Reservoir, 2 miles south
- Marina on Carter ReservoirCarter Reservoir, 3 miles west
- Main Boat Ramp on Boyd LakeBoyd Lake, 8 miles northeast
- Heron Cove on Boyd LakeBoyd Lake, 8 miles northeast
- South Bay Ramp #2 on Horsetooth ReservoirHorsetooth Reservoir, 10 miles north
CPW boat ramp and Fishing Atlas fishing location layers, retrieved October 25, 2026.
Limits
Limits a warden checks at Lon Hagler Reservoir
| 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 |
For the statewide limits chart, Lon Hagler Reservoir counts as east of the Continental Divide water. Unless listed in the brochure special regulations, Lon Hagler Reservoir follows the statewide chart.
Local fishing rules at Lon Hagler Reservoir
| Water as printed | Rule | Brochure |
|---|---|---|
| Lon Hagler Reservoir | All largemouth and smallmouth bass must be returned to water immediately. Only one channel catfish in the bag or possession limit may exceed 20 inches long. | p. 26 |
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.
Statewide bag and possession chart, 2026 Colorado Fishing brochure (CPW, season March 1, 2026 to March 31, 2027), p. 10, retrieved October 25, 2026.
Stocking
Stocking report listings for Lon Hagler Reservoir
Lon Hagler Reservoir appears 14 listings on the CPW trout report, most recently October 9, 2026.
3listings in 2026
5listings in 2025
6listings in 2024
| Report date | What CPW lists |
|---|---|
| October 9, 2026 | catchable trout, CPW Northeast Region |
| May 8, 2026 | catchable trout, CPW Northeast Region |
| March 5, 2026 | catchable trout, CPW Northeast Region |
| December 12, 2025 | catchable trout, CPW Northeast Region |
| November 14, 2025 | catchable trout, CPW Northeast Region |
| May 2, 2025 | catchable trout, CPW Northeast Region |
| April 11, 2025 | catchable trout, CPW Northeast Region |
| March 21, 2025 | catchable trout, CPW Northeast Region |
| December 6, 2024 | catchable trout, CPW Northeast Region |
| November 15, 2024 | catchable trout, CPW Northeast Region |
| October 25, 2024 | catchable trout, CPW Northeast Region |
| May 3, 2024 | catchable trout, CPW Northeast Region |
CPW Fish Stocking Report (catchable trout of about 10 inches; the date is when CPW added the water to its weekly list), 2024 to October 2026, retrieved October 25, 2026. Colorado stocking.
Compare
Nearby water compared with Lon Hagler Reservoir
| Lake | Distance | Acres | Elevation ft | Boat ramps | On the trout report |
|---|---|---|---|---|---|
| Lon Hagler Reservoir | 175 | 5,147 | 2 | yes | |
| Boedecker Reservoir | 1 mile north | 376 | 5,065 | 1 | |
| Loveland Service Center Pond | 3 miles northeast | 8 | 4,984 | 0 | yes |
| Jayhawker Pond #2 | 3 miles northeast | 14 | 4,963 | 0 | yes |
| Jayhawker Pond #1 | 3 miles northeast | 4 | 4,961 | 0 | yes |
| Sandpiper Pond | 3 miles northeast | 12 | 4,957 | 0 | yes |
CPW Fishing Atlas, ramp layer and stocking report, retrieved October 25, 2026.
Nearby
Within a short drive of Lon Hagler Reservoir
Further reservoirs a short haul from Lon Hagler Reservoir
- Boedecker Reservoir1 mile north
- Loveland Service Center Pond3 miles northeast
- Jayhawker Pond #23 miles northeast
- Jayhawker Pond #13 miles northeast
- Sandpiper Pond3 miles northeast
Tackle counters on the way to Lon Hagler Reservoir
- Elkhorn Fly Shopfly shop, Loveland, 3 miles
- Carter Lake Marina Incmarina, Loveland, 4 miles
- Bass Pro Shops Lovelandsporting goods store, Loveland, 5 miles
- Bennetts Tacklebait and tackle shop, Berthoud, 5 miles
- Backcut Fly Shopfly shop, Berthoud, 6 miles
- Boyd Lake Marina Incmarina, Loveland, 7 miles
Fishing outfitters by Lon Hagler Reservoir
- Natural Drift Anglers LLCfishing guide, Fort Collins
- Northern Colorado Fishing Outfitters LLCfishing guide, Fort Collins
- Fly Fishing the Rocky Mountainsfly fishing guide, Estes Park, (417) 860-4175
- Sasquatch Fly Fishinfly fishing guide, Estes Park, (970) 586-3341
Where to stay for a Lon Hagler Reservoir trip
- Loveland6 miles
- Berthoud11 miles
- Lyons12 miles
Which county pages list Lon Hagler Reservoir
- Larimer Countyseat: Fort Collins
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Piscifun reels and grips for Lon Hagler Reservoir
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In photos
A camera tour of the water by Lon Hagler Reservoir
Photo: Lvaughn7, CC BY-SA 4.0
Photo: KimonBerlin, CC BY-SA 2.0
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Photo: Jeffrey Beall, CC BY-SA 3.0
Photo: Sarbjit Bahga, CC BY-SA 4.0
Answers
Straight answers about Lon Hagler Reservoir
Which CPW region covers Lon Hagler Reservoir?
The outline falls in Larimer County, CPW Northeast Region, about 6 miles from Loveland.
How many acres does the CPW outline give Lon Hagler Reservoir?
Around 175 acres of water, at about 5,147 feet.
Does Lon Hagler Reservoir have a CPW-mapped boat ramp?
Start at Lon Hagler boat ramp near Loveland, one of 2 boat ramps.
Which fish does CPW list at Lon Hagler Reservoir?
Fish on the list: bluegill, channel catfish, common carp, black crappie, green sunfish, largemouth bass and rainbow trout.
Are there extra rules at Lon Hagler Reservoir?
Trout, arctic char, grayling, salmon and whitefish (not kokanee): Daily bag 4, possession 8, in aggregate. It has its own brochure entry too, printed above.
Is a second-rod stamp needed at Lon Hagler Reservoir?
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.
Are catchable trout released into Lon Hagler Reservoir?
Stocking report: 14 listings on the CPW catchable trout report (3 in 2026, 5 in 2025, 6 in 2024); latest October 9, 2026.
Is there a fly shop near Lon Hagler Reservoir?
Drive about 3 miles to Elkhorn Fly Shop.
Is Lon Hagler Reservoir fished through the ice?
CPW shows ice fishing listed as yes; carry picks and test thickness.
Circle a weekend for Lon Hagler Reservoir
Check the bag before a fish goes on the stringer.