Silver Lake Flat Reservoir (American Fork Canyon) fishing

Silver Lake Flat Reservoir (American Fork Canyon) was last stocked on July 22, 2026 with 4,000 brook trout (3.0 in. average), according to the Utah DWR fish stocking report. It is a reservoir in Utah County, Utah. From 2021 to 2026, DWR stocked 94,597 fish here, the 5th most of 58 stocked waters in Utah County.

Utah County

Stocking data fetched Nov. 10, 2026.

Last stockedJuly 22, 2026111 days ago, brook trout

Fish stocked in 202614,0058 records

Records since 202141History back to 2002

Size45 Surface Acresas listed by DWR

Recent stockings at Silver Lake Flat Reservoir (American Fork Canyon)

July 22, 20264,000 brook trout, 3.0 in. average
July 20, 20265,010 cutthroat trout, 2.8 in. average
July 13, 2026900 rainbow trout, 11.2 in. average
June 29, 2026900 rainbow trout, 11.2 in. average
June 18, 2026899 rainbow trout, 11.5 in. average
June 2, 2026999 rainbow trout, 11.2 in. average

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

Silver Lake Flat Reservoir (American Fork Canyon) facts

Last stocked: July 22, 2026 (111 days ago): 4,000 brook trout
Stockings in 2026: 8 (14,005 fish): 5,010 cutthroat trout, 4,697 rainbow trout, 4,000 brook trout and 298 arctic grayling
County: Utah County
Size: 45 Surface Acres
Stocked since 2021: rainbow trout, brook trout, cutthroat trout and arctic grayling
Likely catch (DWR): arctic grayling, brook trout, cutthroat trout and rainbow trout
Average size stocked: 5.5 in. (2021 to 2026)
County rank: 5th most fish of 58 stocked waters in Utah County since 2021
Name in DWR report: SILVER L FLAT RES
Nearest water: Silver Lake (American Fork Canyon), 1.5 mi
Rules: Statewide rules (no water-specific entry in the 2026 guidebook)

Silver Lake Flat Reservoir (American Fork Canyon) stocking report, last 12 months

Silver Lake Flat Reservoir (American Fork Canyon): DWR stocking records since Nov. 10, 2025, newest first.

July 22, 2026	Brook trout	4,000	3.0 in.
July 20, 2026	Cutthroat trout	5,010	2.8 in.
July 13, 2026	Rainbow trout	900	11.2 in.
June 29, 2026	Rainbow trout	900	11.2 in.
June 18, 2026	Rainbow trout	899	11.5 in.
June 2, 2026	Rainbow trout	999	11.2 in.
May 12, 2026	Rainbow trout	999	11.0 in.
May 4, 2026	Arctic grayling	298	8.5 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.

Silver Lake Flat Reservoir (American Fork Canyon) stocking profile

First record in the DWR report: May 13, 2002. Since then DWR has logged 151 stockings here in 24 different years, 336,832 fish in all.
Species stocked 2021 to 2026, by share of fish: cutthroat trout 34% (31,792 fish), rainbow trout 30% (28,767 fish), brook trout 28% (26,830 fish) and arctic grayling 8% (7,208 fish).
Busiest months in the record: June (38% of records) and July (31% of records).
Stocked fish averaged 5.5 in. from 2021 to 2026 (per-record averages ranged from 2.3 to 12.9 in.).
Fish stocked 2021 to 2026: 94,597, the 5th most of 58 stocked waters in Utah County and 68th of 1,076 statewide.
Nearest other water with a page: Silver Lake (American Fork Canyon), 1.5 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 Silver Lake Flat Reservoir (American Fork Canyon) stocked?

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

mid to late Maystocked in 3 of the last 5 years, mostly rainbow trout.

early to mid Junestocked in 4 of the last 5 years, mostly rainbow trout.

late Junestocked in 5 of the last 5 years, mostly rainbow trout and brook trout.

mid Julystocked in 3 of the last 5 years, mostly rainbow trout and brook trout.

early to mid Septemberstocked in 3 of the last 5 years, mostly cutthroat trout.

2025 stocking: 8 records, first on May 27, last on Sept. 10.

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.

Silver Lake Flat Reservoir (American Fork Canyon) stocking history by year

Silver Lake Flat Reservoir (American Fork Canyon): DWR stocking records per year. Fish counts are totals of all records that year; average length is weighted by the number of fish.
Year	Records	Fish	Avg. length	Species
2026	8	14,005	5.8 in.	Brook trout, Cutthroat trout, Rainbow trout, Arctic grayling
2025	8	16,518	5.6 in.	Cutthroat trout, Rainbow trout, Arctic grayling, Brook trout
2024	6	14,730	5.2 in.	Cutthroat trout, Rainbow trout, Brook trout
2023	6	14,486	5.7 in.	Cutthroat trout, Brook trout, Rainbow trout
2022	5	14,750	5.5 in.	Cutthroat trout, Rainbow trout, Brook trout
2021	8	20,108	5.2 in.	Cutthroat trout, Arctic grayling, Rainbow trout, Brook trout
2020	9	17,812	6.2 in.	Arctic grayling, Rainbow trout
2019	12	26,478	5.1 in.	Cutthroat trout, Arctic grayling, Rainbow trout
2018	8	7,998	10.5 in.	Rainbow trout
2017	2	4,002	9.0 in.	Rainbow trout
2016	11	39,234	8.0 in.	Rainbow trout, Arctic grayling, Cutthroat trout
2014	3	8,869	9.5 in.	Rainbow trout
2013	4	14,102	7.9 in.	Rainbow trout, Brook trout
2012	5	11,801	7.3 in.	Rainbow trout, Brook trout
2011	4	10,055	9.6 in.	Rainbow trout
2010	8	16,658	7.1 in.	Brook trout, Rainbow trout
2009	7	15,950	6.9 in.	Brook trout, Rainbow trout
2008	7	10,765	8.2 in.	Rainbow trout, Brook trout
2007	8	9,000	7.6 in.	Rainbow trout, Brook trout
2006	3	9,000	7.7 in.	Brook trout, Rainbow trout
2005	4	9,008	7.2 in.	Brook trout, Rainbow trout
2004	5	9,499	8.7 in.	Brook trout, Rainbow trout
2003	5	11,003	7.4 in.	Brook trout, Rainbow trout
2002	5	11,001	7.1 in.	Brook trout, Rainbow trout

All stocking records 2021 to Nov. 10, 2025 (33)

Silver Lake Flat Reservoir (American Fork Canyon): DWR stocking records 2021 to Nov. 10, 2025.

Sept. 10, 2025	Cutthroat trout	6,747	3.7 in.
June 30, 2025	Rainbow trout	1,950	10.3 in.
June 30, 2025	Arctic grayling	473	7.1 in.
June 30, 2025	Arctic grayling	438	8.0 in.
June 30, 2025	Brook trout	4,008	3.0 in.
June 24, 2025	Rainbow trout	900	10.3 in.
June 4, 2025	Rainbow trout	1,000	10.3 in.
May 27, 2025	Rainbow trout	1,002	9.6 in.
Sept. 24, 2024	Cutthroat trout	6,036	2.3 in.
July 16, 2024	Rainbow trout	900	12.3 in.
July 8, 2024	Rainbow trout	901	12.0 in.
July 1, 2024	Brook trout	3,994	2.9 in.
June 24, 2024	Rainbow trout	900	9.9 in.
June 18, 2024	Rainbow trout	1,999	10.2 in.
Sept. 19, 2023	Cutthroat trout	4,998	2.3 in.
Aug. 23, 2023	Brook trout	781	3.6 in.
Aug. 10, 2023	Rainbow trout	901	12.8 in.
July 20, 2023	Rainbow trout	1,801	12.4 in.
July 14, 2023	Brook trout	4,004	2.7 in.
June 27, 2023	Rainbow trout	2,001	12.1 in.
Sept. 19, 2022	Cutthroat trout	5,000	2.4 in.
June 30, 2022	Rainbow trout	2,349	11.8 in.
June 27, 2022	Brook trout	5,040	2.8 in.
June 14, 2022	Rainbow trout	1,360	11.8 in.
May 18, 2022	Rainbow trout	1,001	11.3 in.
Sept. 21, 2021	Cutthroat trout	4,001	2.5 in.
Sept. 21, 2021	Arctic grayling	5,999	2.6 in.
July 19, 2021	Rainbow trout	901	12.9 in.
July 7, 2021	Rainbow trout	902	12.5 in.
June 29, 2021	Brook trout	5,003	2.8 in.
June 21, 2021	Rainbow trout	901	12.9 in.
June 8, 2021	Rainbow trout	1,001	12.3 in.
May 24, 2021	Rainbow trout	1,400	12.1 in.

Fishing rules

No water-specific entry for Silver Lake Flat Reservoir (American Fork Canyon) in the 2026 guidebook: statewide limits apply unless a group entry (such as a drainage) covers it.

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

Access and facilities

Other activities: Hiking, OHV or 4WD trails, Swimming, Wildlife watching
Facilities: Restrooms, Trails/shoreline paths
Camping: Primitive tent camping

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

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Silver Lake Flat Reservoir (American Fork Canyon) questions

When is Silver Lake Flat Reservoir (American Fork Canyon) stocked?

DWR does not publish stocking schedules. Past records show Silver Lake Flat Reservoir (American Fork Canyon) was stocked in mid to late May (3 of the last 5 years), early to mid June (4 of the last 5 years), late June (5 of the last 5 years), mid July (3 of the last 5 years) and early to mid September (3 of the last 5 years). The most recent stocking in the DWR report is dated July 22, 2026.

What fish are in Silver Lake Flat Reservoir (American Fork Canyon)?

DWR lists arctic grayling, brook trout, cutthroat trout and rainbow trout as likely catches. Since 2021 DWR has stocked rainbow trout, brook trout, cutthroat trout and arctic grayling.

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.