Lost Lake Fish Stocking
Montana · 1928–2026 on record
According to Montana fish & wildlife agency, Lost Lake was last stocked May 6, 2026 with Rainbow Trout. Lost Lake has 96 stocking records on file, spanning 1928–2026, with about 780,663 fish stocked over that period.
When Lost Lake is stocked
Lost Lake is typically stocked in spring and summer, most often in May — 23 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Lost Lake, freshest activity first.
Swan Lake
5 mi4 species · 170 records
Last stocked June 2007
Flathead Lake
6 mi14 species · 1161 records
Last stocked October 1997
Hall Creek
5 mi1 species · 28 records
Last stocked August 1995
Groom Creek
5 mi1 species · 7 records
Last stocked September 1992
Estes Lake
6 mi2 species · 6 records
Last stocked July 1987
Mud Lake
3 mi4 species · 35 records
Last stocked July 1976
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 6, 2026 | Rainbow Trout | 1,007 | 3.26" | Montana fish & wildlife agency |
| July 1, 2025 | Rainbow Trout | 1,011 | 3.76" | Montana fish & wildlife agency |
| May 13, 2024 | Rainbow Trout | 1,100 | 7.76" | Montana fish & wildlife agency |
| May 9, 2023 | Rainbow Trout | 1,100 | 7.74" | Montana fish & wildlife agency |
| May 18, 2022 | Rainbow Trout | 1,000 | 7.98" | Montana fish & wildlife agency |
| June 3, 2021 | Rainbow Trout | 1,000 | 7.4" | Montana fish & wildlife agency |
| July 20, 2020 | Cutthroat Trout | 350 | 2.83" | Montana fish & wildlife agency |
| May 21, 2020 | Rainbow Trout | 1,101 | 7.15" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| October 8, 2019 | Rainbow Trout | 1,241 | 2.15" | Montana fish & wildlife agency |
| June 3, 2019 | Rainbow Trout | 1,001 | 7.21" | Montana fish & wildlife agency |
| September 18, 2018 | Arctic Grayling | 800 | 1.8" | Montana fish & wildlife agency |
| June 6, 2018 | Rainbow Trout | 1,000 | 7.46" | Montana fish & wildlife agency |
| May 24, 2017 | Rainbow Trout | 1,000 | 7.69" | Montana fish & wildlife agency |
| June 2, 2016 | Rainbow Trout | 1,002 | 7.28" | Montana fish & wildlife agency |
| September 14, 2015 | Arctic Grayling | 200 | 2.26" | Montana fish & wildlife agency |
| June 9, 2015 | Rainbow Trout | 1,003 | 6.01" | Montana fish & wildlife agency |
| September 12, 2013 | Rainbow Trout | 959 | 3.6" | Montana fish & wildlife agency |
| May 23, 2012 | Rainbow Trout | 908 | 8.83" | Montana fish & wildlife agency |
| July 1, 2011 | Rainbow Trout | 445 | 3.43" | Montana fish & wildlife agency |
| April 26, 2011 | Rainbow Trout | 503 | 7.92" | Montana fish & wildlife agency |
| April 29, 2010 | Rainbow Trout | 517 | 8.6" | Montana fish & wildlife agency |
| May 27, 2009 | Rainbow Trout | 704 | 7.54" | Montana fish & wildlife agency |
| September 9, 2008 | Arctic Grayling | 400 | 2" | Montana fish & wildlife agency |
| May 9, 2008 | Rainbow Trout | 680 | 7.05" | Montana fish & wildlife agency |
| June 8, 2007 | Rainbow Trout | 1,074 | 4.12" | Montana fish & wildlife agency |
| May 8, 2007 | Rainbow Trout | 697 | 7.34" | Montana fish & wildlife agency |
| May 3, 2006 | Rainbow Trout | 692 | 5.72" | Montana fish & wildlife agency |
| April 28, 2005 | Rainbow Trout | 703 | 6.95" | Montana fish & wildlife agency |
| April 15, 2004 | Rainbow Trout | 700 | 7.46" | Montana fish & wildlife agency |
| June 17, 2003 | Rainbow Trout | 1,012 | 4.46" | Montana fish & wildlife agency |
| April 24, 2003 | Rainbow Trout | 676 | 7.73" | Montana fish & wildlife agency |
| May 3, 2002 | Rainbow Trout | 1,001 | 2.6" | Montana fish & wildlife agency |
| May 3, 2002 | Rainbow Trout | 503 | 7.5" | Montana fish & wildlife agency |
| September 20, 2001 | Rainbow Trout | 250 | 4.1" | Montana fish & wildlife agency |
| July 3, 2001 | Rainbow Trout | 1,253 | 2.4" | Montana fish & wildlife agency |
| May 24, 2001 | Rainbow Trout | 744 | 2.7" | Montana fish & wildlife agency |
| September 22, 2000 | Rainbow Trout | 522 | 4.1" | Montana fish & wildlife agency |
| May 24, 2000 | Rainbow Trout | 101 | 8.9" | Montana fish & wildlife agency |
| July 6, 1999 | Rainbow Trout | 1,000 | 5" | Montana fish & wildlife agency |
| June 15, 1999 | Rainbow Trout | 630 | 3.2" | Montana fish & wildlife agency |
| September 28, 1998 | Rainbow Trout | 511 | 4" | Montana fish & wildlife agency |
| September 8, 1997 | Rainbow Trout | 648 | 3.9" | Montana fish & wildlife agency |
| August 21, 1997 | Arctic Grayling | 364 | 1" | Montana fish & wildlife agency |
| August 21, 1997 | Arctic Grayling | 1,185 | 1" | Montana fish & wildlife agency |
| August 5, 1997 | Rainbow Trout | 296 | 7.6" | Montana fish & wildlife agency |
| August 5, 1997 | Rainbow Trout | 698 | 6.2" | Montana fish & wildlife agency |
| June 9, 1995 | Rainbow Trout | 1,004 | 2.6" | Montana fish & wildlife agency |
| May 19, 1995 | Rainbow Trout | 1,012 | 2.4" | Montana fish & wildlife agency |
| August 29, 1994 | Rainbow Trout | 1,000 | 4" | Montana fish & wildlife agency |
| October 6, 1993 | Rainbow Trout | 1,575 | 4.7" | Montana fish & wildlife agency |
Showing 50 of 96 stocking records.
Frequently asked
When was Lost Lake last stocked?
According to Montana fish & wildlife agency, Lost Lake was last stocked May 6, 2026 with Rainbow Trout.
What fish species are stocked in Lost Lake?
Lost Lake is stocked with Rainbow Trout, Cutthroat Trout, Arctic Grayling, and Brook Trout.
What time of year is Lost Lake stocked?
Lost Lake is typically stocked in spring and summer, most often in May.
How often is Lost Lake stocked?
Lost Lake is stocked intermittently — 96 recorded stockings between 1928 and 2026.
How many fish have been stocked in Lost Lake?
About 780,663 fish have been stocked in Lost Lake across 96 recorded events since 1928, per Montana fish & wildlife agency.
What size are the fish stocked in Lost Lake?
Fish stocked in Lost Lake average about 5.7 inches, based on the sizes the agency reported.