River · Garfield, Utah
Mammoth Creek
At a glance
Who lives here
- Brown trout Salmo truttaStocked · 2024 · Fish stocking: Utah Division of Wildlife Resources (Fish Stocking Events)
- Rainbow trout Oncorhynchus mykissStocked · 2024 · Fish stocking: Utah Division of Wildlife Resources (Fish Stocking Events)
- Tiger trout Salmo trutta × Salvelinus fontinalisStocked · 2024 · Fish stocking: Utah Division of Wildlife Resources (Fish Stocking Events)
Not listed doesn't mean no fish.
Stocking
| Year | Species | Stage | Number |
|---|---|---|---|
| Jul 18, 2024 | Rainbow trout | 260 | |
| Jun 12, 2024 | Tiger trout | 501 | |
| May 14, 2024 | Brown trout | 3,185 | |
| May 14, 2024 | Rainbow trout | 258 | |
| Sep 11, 2023 | Bonneville cutthroat trout | 8,066 | |
| Jul 20, 2023 | Rainbow trout | 240 | |
| Jun 27, 2023 | Tiger trout | 605 | |
| Apr 19, 2023 | Brown trout | 3,212 | |
| Apr 19, 2023 | Rainbow trout | 264 | |
| Sep 12, 2022 | Bonneville cutthroat trout | 12,359 | |
| Jul 12, 2022 | Rainbow trout | 306 | |
| Jun 15, 2022 | Tiger trout | 512 | |
| Jun 15, 2022 | Tiger trout | 512 | |
| Jun 8, 2022 | Rainbow trout | 252 | |
| Apr 19, 2022 | Brown trout | 3,090 | |
| Sep 16, 2021 | Bonneville cutthroat trout | 9,250 | |
| Aug 18, 2021 | Bonneville cutthroat trout | 10,960 | |
| Jul 19, 2021 | Rainbow trout | 1,650 | |
| Jul 13, 2021 | Tiger trout | 1,449 | |
| Jul 1, 2021 | Tiger trout | 1,557 |
As the agency publishes it. Newest first: 20 of 44.
Getting on the water
No public access site is listed for this water yet.
Listed by public agencies. A listed site doesn't make the water or its shore open to fishing: when in doubt, it's unknown. Check signs and local rules.
The rules
Summary, not the law. Check the official regulations before you fish.
HuntGrid has no rules for this water yet.
Official regulations: Utah Division of Wildlife Resources
What's biting
Not enough anglers have shared catches here lately. A species shows for a week once at least 5 anglers share catches of it.
From anglers who chose to share their catches in HuntGrid Fishing, each counted once, counts rounded to the nearest 5, published 3 days after the week ends and never changed. Never a spot, time or name.
About this page
Sources and licences:
- U.S. Geological Survey, National Hydrography Dataset Plus High Resolution (NHDPlus HR); U.S. Census Bureau, TIGER/Line® Shapefiles 2025: counties and states · Public domain (U.S. Government work, 17 U.S.C. §105)
- Fish stocking: Utah Division of Wildlife Resources (Fish Stocking Events) · utah.gov's terms (as read by track FA, 2026-10-17): copying "for personal or informational use … if the documents are not modified", accepted under the owner's 2026-10-19 rule; DWR's ArcGIS item 49aac7bce532403c91ace964d5d80093 (UDWR_Fish_Stocking_Events_1979_2024_VIEW, read 2026-10-19) carries a warranty disclaimer only. Shown as DWR published it. Credit the agency; remove the layer if the agency asks.
The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.