Moon Lake fishing

Moon Lake was last stocked on July 16, 2026 with 1,125 walleye (4.6 in. average), according to the Utah DWR fish stocking report. It is a lake in Duchesne County, Utah. From 2021 to 2026, DWR stocked 92,202 fish here, the 5th most of 263 stocked waters in Duchesne County.

Stocking data fetched Nov. 10, 2026.
Last stockedJuly 16, 2026117 days ago, walleye
Fish stocked in 202616,8537 records
Records since 202134History back to 2002
Stocked species4rainbow trout, tiger trout and splake

Recent stockings at Moon Lake

  1. July 16, 20261,125 walleye, 4.6 in. average
  2. July 13, 20261,404 tiger trout, 10.6 in. average
  3. June 17, 20266,660 splake, 2.5 in. average
  4. June 6, 20263,211 rainbow trout, 11.4 in. average
  5. May 26, 20261,983 rainbow trout, 10.8 in. average
  6. May 22, 20262,470 rainbow trout, 11.0 in. average

Newest first, from the Utah DWR stocking report. Full stocking history.

Moon Lake facts

Last stocked
July 16, 2026 (117 days ago): 1,125 walleye
Stockings in 2026
7 (16,853 fish): 7,664 rainbow trout, 6,660 splake, 1,404 tiger trout and 1,125 walleye
County
Duchesne County
Stocked since 2021
rainbow trout, tiger trout, splake and walleye
Likely catch (DWR)
brook trout, mountain whitefish, rainbow trout and splake
Average size stocked
6.7 in. (2021 to 2026)
County rank
5th most fish of 263 stocked waters in Duchesne County since 2021
Name in DWR report
MOON L
Nearest water
Yellowstone River, 6 mi
Rules
Water-specific rules in the 2026 guidebook

Moon Lake stocking report, last 12 months

Moon Lake: DWR stocking records since Nov. 10, 2025, newest first.
July 16, 2026 Walleye 1,125 4.6 in.
July 13, 2026 Tiger trout 1,404 10.6 in.
June 17, 2026 Splake 6,660 2.5 in.
June 6, 2026 Rainbow trout 3,211 11.4 in.
May 26, 2026 Rainbow trout 992 11.0 in.
May 26, 2026 Rainbow trout 991 10.7 in.
May 22, 2026 Rainbow trout 2,470 11.0 in.

Source: Utah DWR fish stocking report. Stocking data fetched Nov. 10, 2026; newest record dated Nov. 19, 2026. DWR posts stockings after they happen and does not publish schedules.

Moon Lake stocking profile

  • First record in the DWR report: May 14, 2002. Since then DWR has logged 121 stockings here in 25 different years, 499,263 fish in all.
  • Species stocked 2021 to 2026, by share of fish: splake 47% (43,657 fish), rainbow trout 35% (32,468 fish), tiger trout 16% (14,952 fish) and walleye 1% (1,125 fish).
  • Busiest months in the record: June (35% of records) and July (30% of records).
  • Stocked fish averaged 6.7 in. from 2021 to 2026 (per-record averages ranged from 2.5 to 12.8 in.). The yearly average was 6.6 in. in 2021 and 7.2 in. in 2025.
  • Fish stocked 2021 to 2026: 92,202, the 5th most of 263 stocked waters in Duchesne County and 72nd of 1,076 statewide.
  • Nearest other water with a page: Yellowstone River, 6 mi away.

Computed from Utah DWR stocking records (fish counts and average lengths as DWR reports them). Past stocking is history, not a schedule.

When is Moon Lake stocked?

Based on DWR stocking records, 2021 to 2025. Stocked in 5 of those 5 years.

late May to early Junestocked in 4 of the last 5 years, mostly rainbow trout and tiger trout.
late June to early Julystocked in 3 of the last 5 years, mostly tiger trout and splake.

2025 stocking: 4 records, first on May 29, last on Aug. 5.

Years with a stocking in each third of the month, 2021 to 2025:012345

DWR does not publish stocking schedules. This is past stocking, not a promise. How we read patterns.

Moon Lake stocking history by year

Moon Lake: DWR stocking records per year. Fish counts are totals of all records that year; average length is weighted by the number of fish.
YearRecordsFishAvg. lengthSpecies
2026716,8537.2 in.Walleye, Tiger trout, Splake, Rainbow trout
2025415,7927.2 in.Splake, Tiger trout, Rainbow trout
2024614,1877.6 in.Tiger trout, Splake, Rainbow trout
2023517,4235.7 in.Tiger trout, Rainbow trout, Splake
2022616,0486.4 in.Tiger trout, Splake, Rainbow trout
2021611,8996.6 in.Tiger trout, Splake, Rainbow trout
2020635,6685.3 in.Splake, Rainbow trout, Tiger trout
2019417,7515.8 in.Rainbow trout, Tiger trout
2018427,9044.7 in.Splake, Rainbow trout, Tiger trout
2017337,0514.2 in.Rainbow trout, Splake, Tiger trout
2016520,3694.1 in.Tiger trout, Splake, Rainbow trout
2015526,9013.9 in.Splake, Rainbow trout, Tiger trout
2014420,4345.0 in.Rainbow trout, Splake, Tiger trout
2013417,9154.2 in.Tiger trout, Splake, Rainbow trout
2012312,6954.6 in.Tiger trout, Rainbow trout
2011423,5194.0 in.Splake, Tiger trout, Rainbow trout
2010726,0664.6 in.Rainbow trout, Splake, Tiger trout
2009325,5904.8 in.Splake, Rainbow trout, Tiger trout
2008315,5746.5 in.Tiger trout, Splake, Rainbow trout
2007626,3605.8 in.Tiger trout, Rainbow trout, Splake
2006616,6747.1 in.Splake, Rainbow trout
2005415,8436.4 in.Tiger trout, Rainbow trout
2004617,1855.8 in.Rainbow trout, Tiger trout
2003716,8847.4 in.Splake, Trout (mixed), Rainbow trout
200236,6789.3 in.Rainbow trout
All stocking records 2021 to Nov. 10, 2025 (27)
Moon Lake: DWR stocking records 2021 to Nov. 10, 2025.
Aug. 5, 2025 Splake 6,508 3.1 in.
July 23, 2025 Tiger trout 1,400 11.3 in.
June 10, 2025 Rainbow trout 3,901 9.9 in.
May 29, 2025 Rainbow trout 3,983 9.8 in.
Aug. 27, 2024 Tiger trout 1,501 11.5 in.
July 9, 2024 Splake 6,535 2.9 in.
July 2, 2024 Tiger trout 1,400 10.0 in.
June 7, 2024 Rainbow trout 329 12.3 in.
May 31, 2024 Rainbow trout 2,288 12.0 in.
May 27, 2024 Rainbow trout 2,134 12.1 in.
Sept. 26, 2023 Tiger trout 2,262 4.3 in.
June 26, 2023 Tiger trout 750 9.4 in.
June 7, 2023 Rainbow trout 2,000 11.6 in.
June 6, 2023 Splake 10,012 3.3 in.
May 26, 2023 Rainbow trout 2,399 11.1 in.
July 27, 2022 Tiger trout 3,650 4.3 in.
July 15, 2022 Splake 7,160 3.6 in.
June 14, 2022 Rainbow trout 100 12.7 in.
May 19, 2022 Rainbow trout 2,240 12.0 in.
May 19, 2022 Rainbow trout 2,144 12.0 in.
May 16, 2022 Tiger trout 754 8.8 in.
Nov. 29, 2021 Tiger trout 1,006 6.9 in.
July 2, 2021 Splake 6,782 3.3 in.
June 9, 2021 Tiger trout 825 9.4 in.
May 26, 2021 Rainbow trout 250 12.4 in.
May 18, 2021 Rainbow trout 996 12.8 in.
May 17, 2021 Rainbow trout 2,040 12.3 in.

Fishing rules

Moon Lake, Duchesne County2026 guidebook, p. 37
  • Splake limit: 2, counted toward the statewide trout limit.

From the 2026 Utah Fishing Guidebook, in our own words. Rules can change mid-year: check wildlife.utah.gov/guidebooks before fishing. See statewide limits.

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Moon Lake questions

When is Moon Lake stocked?

DWR does not publish stocking schedules. Past records show Moon Lake was stocked in late May to early June (4 of the last 5 years) and late June to early July (3 of the last 5 years). The most recent stocking in the DWR report is dated July 16, 2026.

What fish are in Moon Lake?

DWR lists brook trout, mountain whitefish, rainbow trout and splake as likely catches and arctic grayling, cutthroat trout, kokanee salmon and tiger trout as possible. Since 2021 DWR has stocked rainbow trout, tiger trout, splake and walleye.

Are there special fishing rules at Moon Lake?

Yes. The 2026 Utah Fishing Guidebook lists rules for this water, summarized on this page. Check the guidebook and DWR updates before fishing.

Sources

Stocking: Utah DWR fish stocking report, fetched Nov. 10, 2026. Size, program, species and facilities: DWR Fish Utah. Location: Utah DWR, USGS NHD. Rules: 2026 Utah Fishing Guidebook. Page built Nov. 10, 2026. Found an error? Tell us. Verify rules with DWR before fishing.