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Yellowtail Afterbay Reservoir

Fishing spots, fishing reports, and regulations in

Montana, United States

4.8·54 catches

Top fish species at Yellowtail Afterbay Reservoir

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Check which species have trophy potential in Yellowtail Afterbay Reservoir

Yellowtail Afterbay Reservoir fishing reports

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Smallmouth bass

15 in · 1 lb 5 oz

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Smallmouth bass

14 in · 1 lb 2 oz

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Walleye

12 in · 1 lb

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length · weight

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Common carp

length · weight

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Smallmouth bass

length · weight

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General info

Yellowtail Afterbay Reservoir is a stream located in Big Horn County, Montana, United States. It is most popular for fishing Brown trout, Smallmouth bass, and Rainbow trout.

Location

45°18′45.3″N 107°55′51.2″W
Directions

Official website

myfwp.mt.gov

Amenities

When are Brown trout biting on Yellowtail Afterbay Reservoir?

Learn what time of year and day to go fishing at Yellowtail Afterbay 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 Yellowtail Afterbay Reservoir, MT

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 Montana 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.

Regulations for top species

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Local laws and licenses

Montana fishing license

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Reviews of Yellowtail Afterbay Reservoir

4.8
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4 ratings

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Top reviews

Cities nearby

Fort Smith

0.1 miles away

St. Xavier

14.1 miles away

Parkman

39.4 miles away

Cowley

39.6 miles away

Lovell

39.9 miles away

Lockwood

41.9 miles away

Deaver

43.7 miles away

Huntley

44.4 miles away

Dayton

44.5 miles away

Billings

44.6 miles away

Byron

45.5 miles away

Edgar

46.0 miles away

Worden

46.3 miles away

Nibbe

46.5 miles away

Ranchester

46.6 miles away

Silesia

47.0 miles away

Laurel

47.7 miles away

Shepherd

48.2 miles away

Garland

51.1 miles away

Joliet

51.9 miles away

Park City

53.0 miles away

Powell

54.3 miles away

Acton

55.8 miles away

Boyd

56.1 miles away

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FAQ about Yellowtail Afterbay Reservoir fishing

📍 Where is the Yellowtail Afterbay Reservoir located?
the Yellowtail Afterbay Reservoir is a stream located in Big Horn County, Montana, United States. Its coordinates are:
45°18′45.3″N 107°55′51.2″W
.
🎣 Where on the Yellowtail Afterbay Reservoir is it best to fish?
Find the best fishing spots on the Yellowtail Afterbay 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 the Yellowtail Afterbay Reservoir?
The most common species in the Yellowtail Afterbay Reservoir are:
📢 What are the latest Yellowtail Afterbay Reservoir fishing reports?
The latest Yellowtail Afterbay Reservoir fishing reports are:
🪪 Do I need a fishing license to fish at the Yellowtail Afterbay Reservoir?

Fishing in Montana requires a valid state fishing license for anglers. Licenses include resident and non-resident, annual and short-term, purchasable online or at license vendors statewide.

In Montana, no fishing license is required for anglers under 12. Residents 62 and older qualify for a 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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