Dean Reservoir Fish Stocking
Montana · 1982–2024 on record
According to Montana fish & wildlife agency, Dean Reservoir was last stocked June 6, 2024 with Rainbow Trout. Dean Reservoir has 38 stocking records on file, spanning 1982–2024, with about 32,280 fish stocked over that period.
When Dean Reservoir is stocked
Dean Reservoir is typically stocked year-round, most often in April — 11 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Dean Reservoir, freshest activity first.
Spotted Eagle Lake
9 mi12 species · 101 records
Last stocked October 2025
Tongue River
10 mi13 species · 247 records
Last stocked April 2020
Miles City Hatchery Pond
9 mi1 species · 9 records
Last stocked April 2018
Cook Lake
9 mi2 species · 4 records
Last stocked June 2002
Sieler Reservoir
9 mi2 species · 3 records
Last stocked July 1986
Taylor Pond
11 mi2 species · 2 records
Last stocked July 1986
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| June 6, 2024 | Rainbow Trout | 500 | 2.15" | Montana fish & wildlife agency |
| September 28, 2022 | Rainbow Trout | 250 | 8.13" | Montana fish & wildlife agency |
| April 18, 2019 | Rainbow Trout | 500 | 2.06" | Montana fish & wildlife agency |
| April 18, 2019 | Rainbow Trout | 200 | 10.42" | Montana fish & wildlife agency |
| September 6, 2017 | Rainbow Trout | 1,037 | 10.39" | Montana fish & wildlife agency |
| May 5, 2016 | Rainbow Trout | 1,001 | 8.21" | Montana fish & wildlife agency |
| September 4, 2015 | Rainbow Trout | 1,039 | 9.66" | Montana fish & wildlife agency |
| June 12, 2015 | Rainbow Trout | 1,151 | 6.88" | Montana fish & wildlife agency |
Show 30 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 28, 2014 | Rainbow Trout | 500 | 10.4" | Montana fish & wildlife agency |
| June 11, 2014 | Rainbow Trout | 1,059 | 7.38" | Montana fish & wildlife agency |
| June 11, 2013 | Rainbow Trout | 500 | 7.36" | Montana fish & wildlife agency |
| June 4, 2012 | Rainbow Trout | 500 | 10.84" | Montana fish & wildlife agency |
| October 3, 2011 | Rainbow Trout | 494 | 4.13" | Montana fish & wildlife agency |
| April 27, 2004 | Rainbow Trout | 1,001 | 6.75" | Montana fish & wildlife agency |
| September 2, 2003 | Rainbow Trout | 900 | 9.05" | Montana fish & wildlife agency |
| April 29, 2003 | Rainbow Trout | 945 | 6.95" | Montana fish & wildlife agency |
| April 25, 2000 | Rainbow Trout | 1,000 | 6.7" | Montana fish & wildlife agency |
| August 9, 1999 | Rainbow Trout | 997 | 8.6" | Montana fish & wildlife agency |
| April 13, 1999 | Rainbow Trout | 1,004 | 6.3" | Montana fish & wildlife agency |
| April 29, 1998 | Rainbow Trout | 1,001 | 6.5" | Montana fish & wildlife agency |
| September 16, 1997 | Rainbow Trout | 1,046 | 9.8" | Montana fish & wildlife agency |
| May 12, 1997 | Rainbow Trout | 1,023 | 7.6" | Montana fish & wildlife agency |
| September 20, 1996 | Rainbow Trout | 1,203 | 9.5" | Montana fish & wildlife agency |
| April 17, 1996 | Rainbow Trout | 1,000 | 6.9" | Montana fish & wildlife agency |
| September 12, 1995 | Rainbow Trout | 1,015 | 9.4" | Montana fish & wildlife agency |
| April 26, 1995 | Rainbow Trout | 1,031 | 6.7" | Montana fish & wildlife agency |
| September 15, 1994 | Rainbow Trout | 1,010 | 10.3" | Montana fish & wildlife agency |
| May 11, 1994 | Rainbow Trout | 1,000 | 7.2" | Montana fish & wildlife agency |
| September 7, 1993 | Rainbow Trout | 902 | 11" | Montana fish & wildlife agency |
| April 13, 1993 | Rainbow Trout | 1,034 | 7.2" | Montana fish & wildlife agency |
| September 17, 1992 | Rainbow Trout | 1,005 | 8.5" | Montana fish & wildlife agency |
| April 7, 1992 | Rainbow Trout | 1,045 | 7.1" | Montana fish & wildlife agency |
| May 1, 1991 | Rainbow Trout | 1,020 | 8.2" | Montana fish & wildlife agency |
| August 8, 1984 | White Crappie | 1,000 | 1" | Montana fish & wildlife agency |
| October 31, 1983 | Fathead Minnow | 400 | 2" | Montana fish & wildlife agency |
| September 13, 1983 | Largemouth Bass | 400 | 8" | Montana fish & wildlife agency |
| July 22, 1983 | Smallmouth Bass | 1,500 | 2" | Montana fish & wildlife agency |
| June 23, 1982 | Largemouth Bass | 67 | 8" | Montana fish & wildlife agency |
Frequently asked
When was Dean Reservoir last stocked?
According to Montana fish & wildlife agency, Dean Reservoir was last stocked June 6, 2024 with Rainbow Trout.
What fish species are stocked in Dean Reservoir?
Dean Reservoir is stocked with Rainbow Trout, White Crappie, Fathead Minnow, Largemouth Bass, and Smallmouth Bass.
What time of year is Dean Reservoir stocked?
Dean Reservoir is typically stocked year-round, most often in April.
How often is Dean Reservoir stocked?
Dean Reservoir is stocked intermittently — 38 recorded stockings between 1982 and 2024.
How many fish have been stocked in Dean Reservoir?
About 32,280 fish have been stocked in Dean Reservoir across 38 recorded events since 1982, per Montana fish & wildlife agency.
What size are the fish stocked in Dean Reservoir?
Fish stocked in Dean Reservoir average about 7.3 inches, based on the sizes the agency reported.