Sylvia Lake Fish Stocking
Montana · 1929–2025 on record
According to Montana fish & wildlife agency, Sylvia Lake was last stocked August 8, 2025 with Cutthroat Trout. Sylvia Lake has 66 stocking records on file, spanning 1929–2025, with about 758,825 fish stocked over that period.
When Sylvia Lake is stocked
Sylvia Lake is typically stocked in summer, most often in June — 28 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Sylvia Lake, freshest activity first.
Bootjack Lake
6 mi4 species · 145 records
Last stocked June 2026
Loon Lake
5 mi7 species · 182 records
Last stocked May 2026
Smith Lake
6 mi6 species · 68 records
Last stocked May 2026
Davis Lake
6 mi1 species · 16 records
Last stocked July 2022
Sheldon's Pond
5 mi1 species · 1 records
Last stocked August 2002
Robertson Creek
8 mi1 species · 2 records
Last stocked August 2000
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 8, 2025 | Cutthroat Trout | 2,000 | 1.5" | Montana fish & wildlife agency |
| September 4, 2024 | Cutthroat Trout | 2,000 | 1.48" | Montana fish & wildlife agency |
| June 22, 2023 | Arctic Grayling | 11,400 | 1" | Montana fish & wildlife agency |
| July 13, 2022 | Arctic Grayling | 10,010 | 1.54" | Montana fish & wildlife agency |
| July 13, 2022 | Cutthroat Trout | 1,998 | 1.23" | Montana fish & wildlife agency |
| September 1, 2021 | Cutthroat Trout | 2,000 | 2" | Montana fish & wildlife agency |
| June 3, 2021 | Arctic Grayling | 10,000 | 0.95" | Montana fish & wildlife agency |
| August 5, 2019 | Cutthroat Trout | 1,500 | 1.21" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| June 3, 2019 | Arctic Grayling | 10,000 | 0.25" | Montana fish & wildlife agency |
| August 2, 2018 | Cutthroat Trout | 2,000 | 1.5" | Montana fish & wildlife agency |
| August 30, 2017 | Cutthroat Trout | 2,100 | 2" | Montana fish & wildlife agency |
| August 30, 2017 | Cutthroat Trout | 1,998 | 1.62" | Montana fish & wildlife agency |
| June 30, 2016 | Arctic Grayling | 10,000 | 1.12" | Montana fish & wildlife agency |
| August 27, 2015 | Cutthroat Trout | 1,829 | 1.65" | Montana fish & wildlife agency |
| June 22, 2015 | Arctic Grayling | 10,150 | 1.1" | Montana fish & wildlife agency |
| September 5, 2014 | Cutthroat Trout | 2,100 | 1.52" | Montana fish & wildlife agency |
| August 5, 2013 | Cutthroat Trout | 1,319 | 1.1" | Montana fish & wildlife agency |
| June 19, 2013 | Arctic Grayling | 10,000 | 1" | Montana fish & wildlife agency |
| August 30, 2012 | Cutthroat Trout | 2,003 | 1.48" | Montana fish & wildlife agency |
| June 6, 2012 | Arctic Grayling | 10,000 | 1" | Montana fish & wildlife agency |
| August 11, 2011 | Cutthroat Trout | 2,125 | 1.43" | Montana fish & wildlife agency |
| June 1, 2011 | Arctic Grayling | 25,000 | 1" | Montana fish & wildlife agency |
| June 22, 2010 | Cutthroat Trout | 2,208 | 4.92" | Montana fish & wildlife agency |
| May 25, 2010 | Arctic Grayling | 10,000 | 0.5" | Montana fish & wildlife agency |
| June 16, 2009 | Cutthroat Trout | 2,001 | 3.88" | Montana fish & wildlife agency |
| June 9, 2009 | Arctic Grayling | 11,000 | 1" | Montana fish & wildlife agency |
| September 18, 2008 | Cutthroat Trout | 2,016 | 2.07" | Montana fish & wildlife agency |
| July 18, 2008 | Arctic Grayling | 9,000 | 0.5" | Montana fish & wildlife agency |
| October 2, 2007 | Cutthroat Trout | 1,008 | 2.28" | Montana fish & wildlife agency |
| June 26, 2007 | Cutthroat Trout | 578 | 5.02" | Montana fish & wildlife agency |
| August 10, 2006 | Cutthroat Trout | 2,019 | 4.8" | Montana fish & wildlife agency |
| June 2, 2006 | Arctic Grayling | 10,244 | 0.6" | Montana fish & wildlife agency |
| June 27, 2005 | Arctic Grayling | 11,200 | 0.5" | Montana fish & wildlife agency |
| June 16, 2005 | Cutthroat Trout | 2,058 | 3.65" | Montana fish & wildlife agency |
| August 13, 2004 | Arctic Grayling | 10,900 | 0.8" | Montana fish & wildlife agency |
| July 13, 2004 | Cutthroat Trout | 2,080 | 1.3" | Montana fish & wildlife agency |
| September 5, 2003 | Cutthroat Trout | 2,280 | 1.84" | Montana fish & wildlife agency |
| July 16, 2003 | Arctic Grayling | 11,200 | 0.5" | Montana fish & wildlife agency |
| July 19, 2002 | Cutthroat Trout | 2,100 | 0.8" | Montana fish & wildlife agency |
| July 19, 2002 | Arctic Grayling | 11,900 | 0.5" | Montana fish & wildlife agency |
| June 25, 2001 | Arctic Grayling | 9,800 | 0.8" | Montana fish & wildlife agency |
| September 14, 2000 | Cutthroat Trout | 2,024 | 5.1" | Montana fish & wildlife agency |
| September 6, 2000 | Arctic Grayling | 19,200 | 0.7" | Montana fish & wildlife agency |
| August 17, 1999 | Cutthroat Trout | 2,000 | 1.5" | Montana fish & wildlife agency |
| July 22, 1998 | Cutthroat Trout | 2,188 | 1.1" | Montana fish & wildlife agency |
| August 22, 1997 | Cutthroat Trout | 2,083 | 1.8" | Montana fish & wildlife agency |
| July 22, 1997 | Cutthroat Trout | 2,095 | 1.1" | Montana fish & wildlife agency |
| June 9, 1997 | Arctic Grayling | 21,645 | 0.2" | Montana fish & wildlife agency |
| July 27, 1995 | Arctic Grayling | 21,500 | 0.7" | Montana fish & wildlife agency |
| June 29, 1993 | Arctic Grayling | 20,000 | 0.6" | Montana fish & wildlife agency |
Showing 50 of 66 stocking records.
Frequently asked
When was Sylvia Lake last stocked?
According to Montana fish & wildlife agency, Sylvia Lake was last stocked August 8, 2025 with Cutthroat Trout.
What fish species are stocked in Sylvia Lake?
Sylvia Lake is stocked with Cutthroat Trout, Arctic Grayling, and Rainbow Trout.
What time of year is Sylvia Lake stocked?
Sylvia Lake is typically stocked in summer, most often in June.
How often is Sylvia Lake stocked?
Sylvia Lake is stocked intermittently — 66 recorded stockings between 1929 and 2025.
How many fish have been stocked in Sylvia Lake?
About 758,825 fish have been stocked in Sylvia Lake across 66 recorded events since 1929, per Montana fish & wildlife agency.
What size are the fish stocked in Sylvia Lake?
Fish stocked in Sylvia Lake average about 1.5 inches, based on the sizes the agency reported.