Holtan Reservoir fishing

Fishing at Holtan Reservoir has Rainbow Trout and Yellow Perch on the stocking report. It is stocked about 1.3 times a year since 2011, most often in May and June. Species guides list dawn and dusk for Rainbow Trout and dawn, day, and dusk for Yellow Perch.

Last stocked

June 9, 2025

Plants on record

19

Since 2011

Species recorded

2

Average size

3.8 in

Elevation

2,268.9 ft

Access and facts

Nearest town
Plentywood

Small (about 4-acre) reservoir near Plentywood: 10 miles west on Hwy 5, north on Outlook Hwy for 2 miles, then west about a mile.

Sources: shore_notes , nearest_town

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How Holtan Reservoir is stocked

The first plant of the year usually falls in the second week of May. In 2025 it was June 9, 2025, later than usual.

Raymond Dam (11.3 mi) and Boxelder Lake (11.6 mi) were stocked more recently. Raymond Dam is also stocked with Rainbow Trout and Boxelder Lake is also stocked with Rainbow Trout and Yellow Perch.

Fish at Holtan Reservoir

Fishing Holtan Reservoir is most likely to be for Rainbow Trout. Rainbow Trout accounts for 18 of 19 plants on record, ahead of Yellow Perch.

Around the dates Holtan Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 55°F in May, 64.8°F in June, 39.6°F in April, 70.4°F in July. That is air temperature at these coordinates, not water temperature. Open-Meteo

Rainbow Trout 18 plants
Plants
18 of 19
Last stocked
June 9, 2025
Average length
4 in

Seasons and rigs are on the Rainbow Trout guide.

Yellow Perch 1 plant
Plants
1 of 19
Last stocked
August 1, 2024
Average length
1.3 in

Seasons and rigs are on the Yellow Perch guide.

Fish stocked per year

  • 1,5002011
  • 2,5072012
  • 1,0032013
  • 1,0002014
  • 1,0002015
  • 1,0002016
  • 1,0002017
  • 1,0002018
  • 1,0002019
  • 1,0002020
  • 1,0002021
  • 1,0002022
  • 1,0002023
  • 5,5002024
  • 5002025

Stocking history

Showing 15 of 19 plants Showing 19 plants

Source: Montana Fish, Wildlife & Parks.
Date Species Quantity Avg. length Source
June 9, 2025 Rainbow Trout 500 7.03 in report
August 1, 2024 Yellow Perch 5,000 1.33 in report
July 18, 2024 Rainbow Trout 500 7.24 in report
May 17, 2023 Rainbow Trout 1,000 2.63 in report
May 11, 2022 Rainbow Trout 1,000 3.25 in report
May 14, 2021 Rainbow Trout 1,000 3.12 in report
May 12, 2020 Rainbow Trout 1,000 3.21 in report
May 14, 2019 Rainbow Trout 1,000 2.65 in report
May 4, 2018 Rainbow Trout 1,000 2.48 in report
April 14, 2017 Rainbow Trout 1,000 2.02 in report
April 8, 2016 Rainbow Trout 1,000 2.09 in report
April 17, 2015 Rainbow Trout 1,000 2.09 in report
April 17, 2014 Rainbow Trout 1,000 2.08 in report
June 12, 2013 Rainbow Trout 1,003 3.43 in report
June 13, 2012 Rainbow Trout 502 7.79 in report
May 22, 2012 Rainbow Trout 1,005 7.02 in report
May 9, 2012 Rainbow Trout 1,000 2.71 in report
June 27, 2011 Rainbow Trout 500 7.4 in report
June 2, 2011 Rainbow Trout 1,000 3.36 in report
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Species stocked here

Depth-by-season, top lures, and bait notes for each species stocked here are on its own species guide, linked above.

Nearest lakes