Utah Fishing Stocking alerts

Grantsville Reservoir fishing

Grantsville Reservoir was last stocked on Oct. 15, 2026 with 1,197 rainbow trout (11.2 in. average), according to the Utah DWR fish stocking report. It is a reservoir in Tooele County, Utah. From 2021 to 2026, DWR stocked 174,472 fish here, the most of 8 stocked waters in Tooele County.

Tooele County
Stocking data fetched Nov. 10, 2026.
Last stockedOct. 15, 202626 days ago, rainbow trout
Fish stocked in 202625,61416 records
Records since 2021118History back to 2002
Size2rainbow trout and brown trout

Recent stockings at Grantsville Reservoir

  1. Oct. 15, 20261,197 rainbow trout, 11.2 in. average
  2. Oct. 7, 20264,080 rainbow trout, 11.6 in. average
  3. Oct. 1, 20263,000 rainbow trout, 9.7 in. average
  4. June 23, 2026819 rainbow trout, 12.4 in. average
  5. June 8, 20262,380 rainbow trout, 12.1 in. average
  6. May 26, 20261,959 rainbow trout, 11.9 in. average

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

Grantsville Reservoir facts

Last stocked
Oct. 15, 2026 (26 days ago): 1,197 rainbow trout
Stockings in 2026
16 (25,614 fish): 25,614 rainbow trout
County
Tooele County
Size
80 acres, maximum depth 50 feet.
Stocked since 2021
rainbow trout and brown trout
Likely catch (DWR)
brown trout and rainbow trout
Average size stocked
10.5 in. (2021 to 2026)
County rank
Most fish of 8 stocked waters in Tooele County since 2021
Name in DWR report
GRANTSVILLE RES
Nearest water
Settlement Canyon Reservoir, 11.4 mi
Rules
Water-specific rules in the 2026 guidebook

Grantsville Reservoir stocking report, last 12 months

Grantsville Reservoir: DWR stocking records since Nov. 10, 2025, newest first.
Oct. 15, 2026 Rainbow trout 1,197 11.2 in.
Oct. 7, 2026 Rainbow trout 2,720 11.6 in.
Oct. 7, 2026 Rainbow trout 1,360 11.6 in.
Oct. 1, 2026 Rainbow trout 3,000 9.7 in.
June 23, 2026 Rainbow trout 819 12.4 in.
June 8, 2026 Rainbow trout 2,380 12.1 in.
May 26, 2026 Rainbow trout 1,959 11.9 in.
May 18, 2026 Rainbow trout 2,304 12.0 in.
May 11, 2026 Rainbow trout 2,240 12.1 in.
May 6, 2026 Rainbow trout 872 12.7 in.
May 6, 2026 Rainbow trout 114 14.6 in.
May 6, 2026 Rainbow trout 690 12.7 in.
May 5, 2026 Rainbow trout 948 14.6 in.
April 14, 2026 Rainbow trout 2,007 11.2 in.
March 16, 2026 Rainbow trout 1,502 10.6 in.
March 16, 2026 Rainbow trout 1,502 10.6 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.

Grantsville Reservoir stocking profile

  • First record in the DWR report: April 9, 2002. Since then DWR has logged 351 stockings here in 25 different years, 494,497 fish in all.
  • Species stocked 2021 to 2026, by share of fish: rainbow trout 98% (171,582 fish) and brown trout 2% (2,890 fish).
  • Busiest months in the record: June (21% of records) and May (21% of records).
  • Stocked fish averaged 10.5 in. from 2021 to 2026 (per-record averages ranged from 3.1 to 15.8 in.). The yearly average was 10.8 in. in 2021 and 10.0 in. in 2025.
  • Fish stocked 2021 to 2026: 174,472, the most of 8 stocked waters in Tooele County and 32nd of 1,076 statewide.
  • Nearest other water with a page: Settlement Canyon Reservoir, 11.4 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 Grantsville Reservoir stocked?

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

mid Marchstocked in 4 of the last 5 years, mostly rainbow trout.
mid to late Aprilstocked in 5 of the last 5 years, mostly rainbow trout.
early to mid Maystocked in 5 of the last 5 years, mostly rainbow trout.
early Junestocked in 5 of the last 5 years, mostly rainbow trout and brown trout.
late June to early Julystocked in 5 of the last 5 years, mostly rainbow trout.
mid Septemberstocked in 3 of the last 5 years, mostly rainbow trout.
late September to early Octoberstocked in 3 of the last 5 years, mostly rainbow trout.
early Novemberstocked in 3 of the last 5 years, mostly rainbow trout.

2025 stocking: 23 records, first on March 3, last on Oct. 28.

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.

Grantsville Reservoir stocking history by year

Grantsville Reservoir: 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
20261625,61411.6 in.Rainbow trout
20252327,70610.0 in.Rainbow trout, Brown trout
20241822,14211.1 in.Rainbow trout
20231938,0519.4 in.Rainbow trout
20222132,65910.9 in.Rainbow trout
20212128,30010.8 in.Rainbow trout
20201639,1297.7 in.Rainbow trout
2019815,29010.4 in.Rainbow trout
20181716,76310.2 in.Rainbow trout, Brown trout
20171314,3059.2 in.Brown trout, Rainbow trout
20161718,9999.2 in.Rainbow trout
20151114,9468.4 in.Rainbow trout
20141214,5288.9 in.Rainbow trout
20131217,8039.4 in.Rainbow trout
20121415,2799.6 in.Rainbow trout
2011714,52110.9 in.Rainbow trout
20101416,50410.1 in.Rainbow trout
2009918,5558.3 in.Rainbow trout
20081014,6619.4 in.Rainbow trout
20071515,37610.7 in.Rainbow trout
20061314,00910.4 in.Rainbow trout
20051416,34510.7 in.Rainbow trout
20041014,01410.0 in.Rainbow trout
20031013,99410.1 in.Rainbow trout
20021115,00410.2 in.Rainbow trout
All stocking records 2021 to Nov. 10, 2025 (102)
Grantsville Reservoir: DWR stocking records 2021 to Nov. 10, 2025.
Oct. 28, 2025 Rainbow trout 2,405 10.9 in.
Oct. 20, 2025 Rainbow trout 2,432 12.5 in.
Sept. 24, 2025 Rainbow trout 1,400 10.5 in.
Sept. 22, 2025 Rainbow trout 800 10.5 in.
Sept. 22, 2025 Rainbow trout 800 13.6 in.
Sept. 22, 2025 Rainbow trout 400 13.6 in.
Sept. 17, 2025 Rainbow trout 800 13.6 in.
Sept. 17, 2025 Rainbow trout 800 13.6 in.
July 14, 2025 Rainbow trout 912 12.8 in.
July 14, 2025 Rainbow trout 912 12.8 in.
July 10, 2025 Rainbow trout 960 12.8 in.
July 10, 2025 Rainbow trout 960 12.8 in.
July 10, 2025 Rainbow trout 960 12.8 in.
June 6, 2025 Brown trout 2,890 3.1 in.
May 15, 2025 Rainbow trout 1,160 11.7 in.
May 15, 2025 Rainbow trout 1,160 11.7 in.
April 21, 2025 Rainbow trout 1,350 11.9 in.
April 21, 2025 Rainbow trout 1,350 11.9 in.
March 12, 2025 Rainbow trout 455 10.1 in.
March 4, 2025 Rainbow trout 1,200 5.6 in.
March 4, 2025 Rainbow trout 1,200 5.6 in.
March 3, 2025 Rainbow trout 1,200 5.6 in.
March 3, 2025 Rainbow trout 1,200 5.6 in.
Nov. 6, 2024 Rainbow trout 1,200 11.9 in.
Nov. 6, 2024 Rainbow trout 1,200 11.9 in.
Sept. 12, 2024 Rainbow trout 1,038 12.6 in.
Sept. 12, 2024 Rainbow trout 1,038 12.6 in.
Sept. 12, 2024 Rainbow trout 1,038 12.6 in.
Sept. 11, 2024 Rainbow trout 1,600 10.8 in.
July 1, 2024 Rainbow trout 1,250 11.4 in.
July 1, 2024 Rainbow trout 1,250 11.4 in.
June 10, 2024 Rainbow trout 1,260 11.2 in.
June 10, 2024 Rainbow trout 1,260 11.2 in.
May 15, 2024 Rainbow trout 1,254 11.0 in.
May 15, 2024 Rainbow trout 1,254 11.0 in.
April 25, 2024 Rainbow trout 1,248 10.1 in.
April 24, 2024 Rainbow trout 1,248 10.1 in.
April 11, 2024 Rainbow trout 1,254 10.4 in.
April 11, 2024 Rainbow trout 1,254 10.4 in.
March 20, 2024 Rainbow trout 1,248 10.1 in.
March 20, 2024 Rainbow trout 1,248 10.1 in.
Nov. 28, 2023 Rainbow trout 3,408 11.0 in.
Nov. 2, 2023 Rainbow trout 2,877 5.1 in.
Nov. 2, 2023 Rainbow trout 2,580 3.7 in.
Oct. 3, 2023 Rainbow trout 1,666 10.8 in.
Oct. 3, 2023 Rainbow trout 1,666 10.8 in.
Oct. 3, 2023 Rainbow trout 1,666 10.8 in.
July 6, 2023 Rainbow trout 1,334 10.6 in.
July 6, 2023 Rainbow trout 1,334 10.6 in.
June 27, 2023 Rainbow trout 1,330 11.0 in.
June 6, 2023 Rainbow trout 1,680 10.6 in.
June 6, 2023 Rainbow trout 1,680 10.6 in.
May 3, 2023 Rainbow trout 1,920 10.1 in.
May 3, 2023 Rainbow trout 1,920 10.1 in.
April 27, 2023 Rainbow trout 1,998 9.8 in.
April 27, 2023 Rainbow trout 1,998 9.8 in.
April 13, 2023 Rainbow trout 1,998 9.8 in.
April 13, 2023 Rainbow trout 1,998 9.8 in.
March 20, 2023 Rainbow trout 2,499 9.4 in.
March 20, 2023 Rainbow trout 2,499 9.4 in.
Nov. 9, 2022 Rainbow trout 1,383 11.4 in.
Nov. 7, 2022 Rainbow trout 2,560 11.7 in.
Nov. 1, 2022 Rainbow trout 1,272 11.8 in.
Nov. 1, 2022 Rainbow trout 2,703 11.8 in.
Sept. 20, 2022 Rainbow trout 1,120 12.1 in.
Sept. 20, 2022 Rainbow trout 1,120 12.1 in.
Sept. 19, 2022 Rainbow trout 715 12.4 in.
Sept. 19, 2022 Rainbow trout 1,040 12.4 in.
Sept. 19, 2022 Rainbow trout 1,040 12.4 in.
June 22, 2022 Rainbow trout 1,494 11.2 in.
June 22, 2022 Rainbow trout 1,494 11.2 in.
June 9, 2022 Rainbow trout 1,500 10.8 in.
June 9, 2022 Rainbow trout 1,500 10.8 in.
May 16, 2022 Rainbow trout 1,500 10.4 in.
May 16, 2022 Rainbow trout 1,500 10.4 in.
May 3, 2022 Rainbow trout 1,748 10.3 in.
May 3, 2022 Rainbow trout 1,748 10.3 in.
April 11, 2022 Rainbow trout 1,755 9.8 in.
April 11, 2022 Rainbow trout 1,755 9.8 in.
March 14, 2022 Rainbow trout 1,856 9.2 in.
March 14, 2022 Rainbow trout 1,856 9.2 in.
Sept. 27, 2021 Rainbow trout 1,250 10.8 in.
Sept. 27, 2021 Rainbow trout 1,250 10.8 in.
Sept. 21, 2021 Rainbow trout 1,250 10.8 in.
Sept. 21, 2021 Rainbow trout 1,250 10.8 in.
July 1, 2021 Rainbow trout 752 11.6 in.
July 1, 2021 Rainbow trout 752 11.6 in.
June 22, 2021 Rainbow trout 1,500 10.8 in.
June 22, 2021 Rainbow trout 1,500 10.8 in.
June 14, 2021 Rainbow trout 1,500 10.8 in.
June 14, 2021 Rainbow trout 1,500 10.8 in.
June 7, 2021 Rainbow trout 1,500 10.8 in.
June 7, 2021 Rainbow trout 1,500 10.8 in.
May 17, 2021 Rainbow trout 1,496 10.4 in.
May 17, 2021 Rainbow trout 1,496 10.4 in.
May 3, 2021 Rainbow trout 1,500 10.8 in.
May 3, 2021 Rainbow trout 1,500 10.8 in.
April 19, 2021 Rainbow trout 1,500 10.8 in.
April 19, 2021 Rainbow trout 1,500 10.8 in.
April 12, 2021 Rainbow trout 300 15.8 in.
April 5, 2021 Rainbow trout 1,752 10.1 in.
April 5, 2021 Rainbow trout 1,752 10.1 in.

Fishing rules

Grantsville Reservoir, Tooele County2026 guidebook, p. 33
  • Smallmouth bass: no limit.
  • No bass may be released; every bass caught must be killed right away.

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.

Access and facilities

Other activities
Mountain biking, Swimming, Wildlife watching
Facilities
Covered picnic area, Fire rings, Restrooms
Boating
Boat ramp
Camping
Primitive tent camping, RV camping

Facility list from DWR Fish Utah. Check with the land manager before you go; facilities close seasonally.

Email alerts

Email me when Grantsville Reservoir is stocked

Email me when Grantsville Reservoir shows up in the DWR stocking report. You confirm by email first and can unsubscribe in one click.

"Often stocked around now" heads-ups come from past records only, never a promise. We use your email only for these alerts. Privacy.

Waters
Grantsville Reservoir
Alert types

Grantsville Reservoir questions

When is Grantsville Reservoir stocked?

DWR does not publish stocking schedules. Past records show Grantsville Reservoir was stocked in mid March (4 of the last 5 years), mid to late April (5 of the last 5 years), early to mid May (5 of the last 5 years), early June (5 of the last 5 years), late June to early July (5 of the last 5 years), mid September (3 of the last 5 years), late September to early October (3 of the last 5 years) and early November (3 of the last 5 years). The most recent stocking in the DWR report is dated Oct. 15, 2026.

What fish are in Grantsville Reservoir?

DWR lists brown trout and rainbow trout as likely catches and common carp as possible. Since 2021 DWR has stocked rainbow trout and brown trout.

Are there special fishing rules at Grantsville Reservoir?

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.