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Portner Reservoir

Fishing spots, fishing reports, and regulations in

Colorado, United States

4.2·583 catches

Top fish species at Portner Reservoir

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Portner Reservoir fishing reports

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Largemouth bass

length · weight

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Largemouth bass

16 in · 3 lb

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Largemouth bass

length · weight

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Black crappie

length · weight

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Greengill hybrid

length · weight

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Greengill hybrid

length · weight

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General info

Portner Reservoir is a lake located in Larimer County, Colorado, United States. It is most popular for fishing Largemouth bass, Bluegill, and Black crappie.

Location

40°30′16″N 105°03′46.9″W
Directions

Amenities

When are Largemouth Bass biting on Portner Reservoir?

Learn what time of year and day to go fishing at Portner Reservoir. Download Fishbrain today to look for new fishing spots, scout new fishing access, or prep for your next trip.

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Fishing regulations at Portner Reservoir, CO

Disclaimer: Always check local fishing regulations, water access rights and land ownership before fishing, regardless of any catches logged in that area by the Fishbrain community. Fishbrain has mapped millions of acres of government-owned land across the USA to help you identify potential fishing access, but you are responsible for ensuring compliance with all legal requirements.

Fishing regulations in Colorado can change throughout the year. Make sure to check this page before fishing for the most up to date rules and regulations for the current season. Local regulations govern when you can fish, the max size of the fish you can keep, how many fish you can keep, and more.

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Local laws and licenses

Colorado fishing license

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Reviews of Portner Reservoir

4.2
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9 ratings

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Top reviews

Cities nearby

Fort Collins

3.0 miles away

Timnath

5.7 miles away

Loveland

6.1 miles away

Windsor

7.8 miles away

Laporte

10.2 miles away

Severance

10.5 miles away

Johnstown

12.3 miles away

Berthoud

13.7 miles away

Wellington

13.8 miles away

Greeley

16.6 miles away

Milliken

17.2 miles away

Ault

18.0 miles away

Pierce

18.0 miles away

Eaton

18.4 miles away

Mead

19.2 miles away

Evans

19.5 miles away

Nunn

20.4 miles away

Garden City

21.1 miles away

Gilcrest

21.2 miles away

Lyons

22.3 miles away

Platteville

22.9 miles away

Longmont

23.3 miles away

Firestone

24.8 miles away

Estes Park

25.8 miles away

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FAQ about Portner Reservoir fishing

📍 Where is Portner Reservoir located?
Portner Reservoir is a lake located in Larimer County, Colorado, United States. Its coordinates are:
40°30′16″N 105°03′46.9″W
.
🎣 Where on Portner Reservoir is it best to fish?
Find the best fishing spots on Portner Reservoir by looking at where other anglers have caught fish. This can easily be done in the where it is also possible to see big fish potential and how good fishing is right now along with Garmin® depth maps.
🐟 What species are in Portner Reservoir?
The most common species in Portner Reservoir are:
📢 What are the latest Portner Reservoir fishing reports?
The latest Portner Reservoir fishing reports are:
🪪 Do I need a fishing license to fish at Portner Reservoir?

Fishing in Colorado requires a valid state fishing license for anglers. Licenses include resident, non-resident, daily, annual, and combination options, available online or at licensed agents.

In Colorado, no fishing license is required for anglers under 16. Residents 64 and older qualify for a heavily discounted license. A few other exceptions worth knowing:

  • Free fishing days — most states designate 1–2 weekends a year where anyone can fish without a license

  • Tribal waters — tribal members fishing on tribal land operate under separate tribal regulations

  • Private ponds — landowners fishing their own water typically don't need a license

Non-residents usually pay more for a license than residents. Some species also require an extra stamp or endorsement on top of your base license.

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