Twelvemile Coulee Reservoir Fish Stocking
Montana · 2006–2012 on record
According to Montana fish & wildlife agency, Twelvemile Coulee Reservoir was last stocked May 24, 2012 with Rainbow Trout. Twelvemile Coulee Reservoir has 7 stocking records on file, spanning 2006–2012, with about 13,000 fish stocked over that period.
When Twelvemile Coulee Reservoir is stocked
Nearby stocked waters
Other stocked waters near Twelvemile Coulee Reservoir, freshest activity first.
Bailey Reservoir
16 mi7 species · 58 records
Last stocked September 2025
Dry Fork Reservoir
19 mi12 species · 75 records
Last stocked June 2025
Diacon Pond
13 mi1 species · 6 records
Last stocked June 2021
Clawitter Reservoir
10 mi2 species · 11 records
Last stocked July 2018
Boneau Reservoir
20 mi4 species · 111 records
Last stocked June 2011
Williamson Reservoir
16 mi4 species · 25 records
Last stocked May 2008
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 24, 2012 | Rainbow Trout | 2,000 | 4.8" | Montana fish & wildlife agency |
| July 18, 2011 | Rainbow Trout | 2,000 | 4.3" | Montana fish & wildlife agency |
| June 29, 2010 | Rainbow Trout | 2,000 | 5.8" | Montana fish & wildlife agency |
| June 15, 2009 | Rainbow Trout | 2,000 | 5" | Montana fish & wildlife agency |
| June 30, 2008 | Rainbow Trout | 2,000 | 5.1" | Montana fish & wildlife agency |
| April 30, 2007 | Rainbow Trout | 2,000 | 3.5" | Montana fish & wildlife agency |
| June 26, 2006 | Rainbow Trout | 1,000 | 4.6" | Montana fish & wildlife agency |
Frequently asked
When was Twelvemile Coulee Reservoir last stocked?
According to Montana fish & wildlife agency, Twelvemile Coulee Reservoir was last stocked May 24, 2012 with Rainbow Trout.
What fish species are stocked in Twelvemile Coulee Reservoir?
Twelvemile Coulee Reservoir is stocked with Rainbow Trout.
How often is Twelvemile Coulee Reservoir stocked?
Twelvemile Coulee Reservoir is stocked intermittently — 7 recorded stockings between 2006 and 2012.
How many fish have been stocked in Twelvemile Coulee Reservoir?
About 13,000 fish have been stocked in Twelvemile Coulee Reservoir across 7 recorded events since 2006, per Montana fish & wildlife agency.
What size are the fish stocked in Twelvemile Coulee Reservoir?
Fish stocked in Twelvemile Coulee Reservoir average about 4.7 inches, based on the sizes the agency reported.