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Idaho stocking report

Big Trinity Lake

134 records Last stocked: August 4, 2026

The short answer

Big Trinity Lake was last stocked on August 4, 2026: 798 Triploid Rainbow Trout (Catchable (6+ inches)).

County
Elmore
Species on record
Triploid Rainbow Trout, Westslope Cutthroat Trout, Rainbow Trout, Yellowstone Cutthroat Trout
Records
134 stocking events
Official source
Idaho Department of Fish and Game report

Location map

Big Trinity Lake location context

Approximate · county context
Ada County Adams County Bannock County Bear Lake County Benewah County Bingham County Blaine County Boise County Bonner County Bonneville County Boundary County Butte County Camas County Canyon County Caribou County Cassia County Clark County Clearwater County Custer County Elmore County Franklin County Fremont County Gem County Gooding County Idaho County Jefferson County Jerome County Kootenai County Latah County Lemhi County Lewis County Lincoln County Madison County Minidoka County Nez Perce County Oneida County Owyhee County Payette County Power County Shoshone County Teton County Twin Falls County Valley County Washington County ID Big Trinity Lake, Elmore County Big Trinity Lake Little Trinity Lake, Elmore County Little Trinity Lake Featherville Dredge Pond, Elmore County Featherville Dredge Pond Legacy Park Pond, Elmore County Legacy Park Pond Anderson Ranch Reservoir, Elmore County Anderson Ranch Reservoir Blair Trail Fishing Pond, Elmore County Blair Trail Fishing Pond C. J. Strike Reservoir, Elmore County C. J. Strike Reservoir Big Buck Lake, Elmore County Big Buck Lake Blue Jay Lake, Elmore County Blue Jay Lake Elmore County
Big Trinity LakeElmore County Little Trinity LakeElmore County Featherville Dredge PondElmore County Legacy Park PondElmore County Anderson Ranch ReservoirElmore County

Pins use the finest location published with the stocking record. County-level pins show area context, not an exact access point; confirm access and directions with the official agency source.

Agency records

Full stocking history

DateSpeciesFishSize
August 4, 2026 Triploid Rainbow Trout 798 Catchable (6+ inches)
July 29, 2026 Triploid Rainbow Trout 2,413 Catchable (12-14 inches)
September 8, 2025 Westslope Cutthroat Trout 3,981 Fry (0-3 inches)
July 16, 2025 Triploid Rainbow Trout 3,285 Catchable (12-14 inches)
September 6, 2024 Westslope Cutthroat Trout 4,016 Fry (0-3 inches)
August 29, 2024 Rainbow Trout 1,320 Catchable (6+ inches)
August 20, 2024 Rainbow Trout 1,162 Catchable (12-14 inches)
July 22, 2024 Rainbow Trout 1,050 Catchable (12-14 inches)
September 11, 2023 Westslope Cutthroat Trout 3,976 Fry (0-3 inches)
August 15, 2023 Triploid Rainbow Trout 1,208 Catchable (6+ inches)
August 1, 2023 Triploid Rainbow Trout 2,000 Catchable (6+ inches)
August 18, 2022 Triploid Rainbow Trout 1,200 Catchable (6+ inches)
August 12, 2022 Westslope Cutthroat Trout 3,530 Fry (0-3 inches)
July 21, 2022 Triploid Rainbow Trout 2,015 Catchable (6+ inches)
August 18, 2021 Triploid Rainbow Trout 1,200 Catchable (6+ inches)
July 26, 2021 Westslope Cutthroat Trout 4,039 Fry (0-3 inches)
June 24, 2021 Triploid Rainbow Trout 2,475 Catchable (6+ inches)
August 25, 2020 Westslope Cutthroat Trout 1,989 Fry (0-3 inches)
August 11, 2020 Triploid Rainbow Trout 1,253 Catchable (12-14 inches)
July 27, 2020 Triploid Rainbow Trout 1,978 Catchable (12-14 inches)
August 28, 2019 Westslope Cutthroat Trout 2,000 Fry (0-3 inches)
August 21, 2019 Triploid Rainbow Trout 1,280 Catchable (6+ inches)
July 16, 2019 Triploid Rainbow Trout 2,004 Catchable (6+ inches)
August 16, 2018 Westslope Cutthroat Trout 2,005 Fry (0-3 inches)
August 14, 2018 Triploid Rainbow Trout 1,469 Catchable (6+ inches)
July 18, 2018 Triploid Rainbow Trout 2,058 Catchable (6+ inches)
August 10, 2017 Triploid Rainbow Trout 1,202 Catchable (6+ inches)
August 3, 2017 Westslope Cutthroat Trout 2,003 Fry (0-3 inches)
August 25, 2016 Triploid Rainbow Trout 950 Catchable (6+ inches)
August 16, 2016 Westslope Cutthroat Trout 2,003 Fry (0-3 inches)
July 15, 2016 Triploid Rainbow Trout 1,448 Catchable (6+ inches)
August 25, 2015 Triploid Rainbow Trout 944 Catchable (6+ inches)
July 27, 2015 Triploid Rainbow Trout 910 Catchable (6+ inches)
July 21, 2015 Westslope Cutthroat Trout 2,004 Fry (0-3 inches)
August 29, 2014 Triploid Rainbow Trout 975 Catchable (6+ inches)
August 5, 2014 Westslope Cutthroat Trout 1,983 Fry (0-3 inches)
July 31, 2014 Triploid Rainbow Trout 1,400 Catchable (6+ inches)
August 6, 2013 Westslope Cutthroat Trout 2,004 Fry (0-3 inches)
July 23, 2013 Triploid Rainbow Trout 1,207 Catchable (6+ inches)
July 23, 2013 Triploid Rainbow Trout 50 Catchable (6+ inches)
July 9, 2013 Triploid Rainbow Trout 1,176 Catchable (6+ inches)
July 9, 2013 Triploid Rainbow Trout 270 Catchable (6+ inches)
September 7, 2012 Westslope Cutthroat Trout 2,000 Fry (0-3 inches)
July 23, 2012 Triploid Rainbow Trout 1,440 Catchable (6+ inches)
September 7, 2011 Westslope Cutthroat Trout 2,007 Fry (0-3 inches)
August 30, 2011 Triploid Rainbow Trout 1,000 Catchable (6+ inches)
August 2, 2011 Triploid Rainbow Trout 1,553 Catchable (6+ inches)
September 15, 2010 Westslope Cutthroat Trout 1,004 Fry (0-3 inches)
August 24, 2010 Triploid Rainbow Trout 1,040 Catchable (6+ inches)
July 22, 2010 Triploid Rainbow Trout 875 Catchable (6+ inches)
September 17, 2009 Westslope Cutthroat Trout 2,000 Fry (0-3 inches)
August 17, 2009 Triploid Rainbow Trout 960 Catchable (6+ inches)
July 23, 2009 Triploid Rainbow Trout 1,504 Catchable (6+ inches)
September 29, 2008 Westslope Cutthroat Trout 2,000 Fry (0-3 inches)
August 19, 2008 Triploid Rainbow Trout 840 Catchable (6+ inches)
July 9, 2008 Triploid Rainbow Trout 1,650 Catchable (6+ inches)
August 23, 2007 Triploid Rainbow Trout 1,575 Catchable (6+ inches)
August 6, 2007 Yellowstone Cutthroat Trout 2,019 Fry (0-3 inches)
July 5, 2007 Triploid Rainbow Trout 1,540 Catchable (6+ inches)
August 28, 2006 Westslope Cutthroat Trout 2,000 Fry (0-3 inches)
August 9, 2006 Triploid Rainbow Trout 1,960 Catchable (6+ inches)
July 25, 2006 Triploid Rainbow Trout 1,540 Catchable (6+ inches)
August 18, 2005 Triploid Rainbow Trout 2,550 Catchable (6+ inches)
August 17, 2005 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
September 2, 2004 Yellowstone Cutthroat Trout 2,500 Fry (0-3 inches)
August 19, 2004 Triploid Rainbow Trout 990 Catchable (6+ inches)
July 20, 2004 Triploid Rainbow Trout 1,513 Catchable (6+ inches)
August 26, 2003 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
August 12, 2003 Triploid Rainbow Trout 1,099 Catchable (6+ inches)
July 17, 2003 Triploid Rainbow Trout 1,890 Catchable (6+ inches)
August 21, 2002 Triploid Rainbow Trout 1,000 Catchable (6+ inches)
August 19, 2002 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
July 3, 2002 Triploid Rainbow Trout 1,500 Catchable (6+ inches)
August 16, 2001 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
July 18, 2001 Triploid Rainbow Trout 1,500 Catchable (6+ inches)
June 26, 2001 Triploid Rainbow Trout 1,000 Catchable (6+ inches)
September 12, 2000 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
August 1, 2000 Triploid Rainbow Trout 1,500 Catchable (6+ inches)
July 12, 2000 Triploid Rainbow Trout 1,000 Catchable (6+ inches)
September 8, 1999 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
August 26, 1999 Rainbow Trout 1,000 Catchable (6+ inches)
July 22, 1999 Rainbow Trout 1,000 Catchable (6+ inches)
September 11, 1998 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
August 19, 1998 Rainbow Trout 1,500 Catchable (6+ inches)
July 22, 1998 Rainbow Trout 1,250 Catchable (6+ inches)
September 3, 1997 Yellowstone Cutthroat Trout 1,000 Fry (0-3 inches)
August 6, 1997 Rainbow Trout 1,000 Catchable (6+ inches)
July 23, 1997 Rainbow Trout 1,500 Catchable (6+ inches)
August 27, 1996 Rainbow Trout 1,000 Catchable (6+ inches)
July 29, 1996 Rainbow Trout 2,000 Catchable (6+ inches)
July 24, 1996 Yellowstone Cutthroat Trout 2,112 Fry (0-3 inches)
August 24, 1995 Rainbow Trout 1,000 Catchable (6+ inches)
August 18, 1995 Yellowstone Cutthroat Trout 2,000 Fry (0-3 inches)
July 26, 1995 Rainbow Trout 2,000 Catchable (6+ inches)
September 15, 1994 Yellowstone Cutthroat Trout 1,000 Fry (0-3 inches)
August 3, 1994 Triploid Rainbow Trout 1,000 Catchable (6+ inches)
June 30, 1994 Triploid Rainbow Trout 1,950 Catchable (6+ inches)
September 2, 1993 Rainbow Trout 1,000 Catchable (6+ inches)
August 5, 1993 Rainbow Trout 2,040 Catchable (6+ inches)
August 17, 1992 Rainbow Trout 1,000 Catchable (6+ inches)
July 1, 1992 Rainbow Trout 2,000 Catchable (6+ inches)
August 8, 1991 Rainbow Trout 1,000 Catchable (6+ inches)
July 30, 1991 Rainbow Trout 2,000 Fingerling (3-6 inches)
August 15, 1990 Rainbow Trout 1,000 Catchable (6+ inches)
July 2, 1990 Rainbow Trout 2,000 Catchable (6+ inches)
August 28, 1989 Rainbow Trout 550 Catchable (6+ inches)
July 18, 1989 Rainbow Trout 1,100 Catchable (6+ inches)
August 22, 1988 Rainbow Trout 1,250 Catchable (6+ inches)
July 25, 1988 Rainbow Trout 1,298 Catchable (6+ inches)
June 27, 1988 Rainbow Trout 1,202 Catchable (6+ inches)
August 17, 1987 Rainbow Trout 1,296 Catchable (6+ inches)
July 22, 1987 Rainbow Trout 1,311 Catchable (6+ inches)
June 22, 1987 Rainbow Trout 1,238 Catchable (6+ inches)
August 13, 1986 Rainbow Trout 1,198 Catchable (6+ inches)
July 17, 1986 Rainbow Trout 1,190 Catchable (6+ inches)
August 20, 1985 Rainbow Trout 1,014 Catchable (6+ inches)
July 1, 1985 Rainbow Trout 1,344 Catchable (6+ inches)
September 19, 1984 Rainbow Trout 504 Catchable (6+ inches)
August 3, 1984 Rainbow Trout 1,887 Catchable (6+ inches)
August 24, 1982 Rainbow Trout 2,377 Catchable (6+ inches)
July 10, 1981 Rainbow Trout 2,115 Catchable (6+ inches)
July 14, 1980 Rainbow Trout 2,350 Catchable (6+ inches)
July 11, 1979 Rainbow Trout 2,350 Catchable (6+ inches)
July 26, 1978 Rainbow Trout 3,350 Catchable (6+ inches)
June 21, 1977 Rainbow Trout 4,185 Catchable (6+ inches)
July 26, 1976 Rainbow Trout 2,000 Catchable (6+ inches)
July 31, 1975 Rainbow Trout 1,350 Catchable (6+ inches)
July 17, 1974 Rainbow Trout 3,000 Catchable (6+ inches)
July 16, 1973 Rainbow Trout 3,000 Catchable (6+ inches)
July 24, 1972 Rainbow Trout 3,000 Catchable (6+ inches)
August 3, 1971 Rainbow Trout 3,000 Catchable (6+ inches)
July 20, 1970 Rainbow Trout 3,000 Catchable (6+ inches)
July 9, 1969 Rainbow Trout 2,998 Catchable (6+ inches)
July 2, 1968 Rainbow Trout 3,020 Fingerling (3-6 inches)

Records shown exactly as published by Idaho Department of Fish and Game. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.

Data source: Idaho Department of Fish and Game. Last updated: .

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