StockedWaters

Triangle Lake Fish Stocking

Montana · 19692025 on record

Source: Montana fish & wildlife agency· updated 2025-08-05

According to Montana fish & wildlife agency, Triangle Lake was last stocked August 5, 2025 with Cutthroat Trout. Triangle Lake has 22 stocking records on file, spanning 1969–2025, with about 17,277 fish stocked over that period.

August 5, 2025
Last stocked
17,277
Fish stocked
1
Species
22
Stocking records

When Triangle Lake is stocked

Triangle Lake is typically stocked in summer, most often in August — 14 stocking events in that peak month.

How Triangle Lake's stockings spread across the calendar year.

Nearby stocked waters

Other stocked waters near Triangle Lake, freshest activity first.

Stocking history

Most recent stockings first. Dates shown at the precision the agency reported.

DateSpeciesNumberSizeSource
August 5, 2025Cutthroat Trout7902.34"Montana fish & wildlife agency
July 29, 2019Cutthroat Trout4702.72"Montana fish & wildlife agency
July 30, 2018Cutthroat Trout6302.34"Montana fish & wildlife agency
July 24, 2017Cutthroat Trout7902.3"Montana fish & wildlife agency
August 2, 2011Cutthroat Trout6302.2"Montana fish & wildlife agency
July 20, 2010Cutthroat Trout6302.15"Montana fish & wildlife agency
July 28, 2009Cutthroat Trout7902"Montana fish & wildlife agency
July 28, 2009Cutthroat Trout7902"Montana fish & wildlife agency
Show 14 more stocking records
DateSpeciesNumberSizeSource
August 6, 2003Cutthroat Trout6302.15"Montana fish & wildlife agency
August 13, 2002Cutthroat Trout6302.5"Montana fish & wildlife agency
August 7, 2001Cutthroat Trout7902"Montana fish & wildlife agency
August 4, 1995Cutthroat Trout6302"Montana fish & wildlife agency
August 8, 1994Cutthroat Trout6302.4"Montana fish & wildlife agency
August 9, 1993Cutthroat Trout8002.2"Montana fish & wildlife agency
August 13, 1987Cutthroat Trout1,0001.9"Montana fish & wildlife agency
July 22, 1985Cutthroat Trout8172"Montana fish & wildlife agency
July 22, 1985Cutthroat Trout6542"Montana fish & wildlife agency
August 17, 1979Cutthroat Trout1,0262"Montana fish & wildlife agency
August 17, 1977Cutthroat Trout7902"Montana fish & wildlife agency
August 17, 1977Cutthroat Trout6302"Montana fish & wildlife agency
August 5, 1971Cutthroat Trout6603"Montana fish & wildlife agency
August 1, 1969Cutthroat Trout2,0703"Montana fish & wildlife agency

Frequently asked

When was Triangle Lake last stocked?

According to Montana fish & wildlife agency, Triangle Lake was last stocked August 5, 2025 with Cutthroat Trout.

What fish species are stocked in Triangle Lake?

Triangle Lake is stocked with Cutthroat Trout.

What time of year is Triangle Lake stocked?

Triangle Lake is typically stocked in summer, most often in August.

How often is Triangle Lake stocked?

Triangle Lake is stocked intermittently — 22 recorded stockings between 1969 and 2025.

How many fish have been stocked in Triangle Lake?

About 17,277 fish have been stocked in Triangle Lake across 22 recorded events since 1969, per Montana fish & wildlife agency.

What size are the fish stocked in Triangle Lake?

Fish stocked in Triangle Lake average about 2.2 inches, based on the sizes the agency reported.

How this is calculated: compiled automatically from Montana fish & wildlife agency open data — normalized, date-validated, and shown only at the precision the agency reported. Sources & methodology →

Compiled by .