Ross Reservoir fishing

Fishing at Ross Reservoir has Cutthroat Trout on the stocking report. It is stocked about 0.8 times a year since 2012, most often in August and September.

Last stocked

September 24, 2025

Plants on record

11

Since 2012

Species recorded

1

Average size

4.8 in

Elevation

3,999.9 ft

How Ross Reservoir is stocked

The first plant of the year usually falls in the first week of August. In 2025 it was September 24, 2025, later than usual.

No plants recorded in 2013, 2015, 2017, and 2019.

Cow Creek Reservoir (15.5 mi) was stocked more recently.

Fish at Ross Reservoir

Fishing Ross Reservoir is most likely to be for Cutthroat Trout. All 11 plants on record are Cutthroat Trout.

Around the dates Ross Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 67.1°F in August, 58.5°F in September, 69°F in July, 51.3°F in May. That is air temperature at these coordinates, not water temperature. Open-Meteo

Cutthroat Trout 11 plants
Plants
11 of 11
Last stocked
September 24, 2025
Average length
4.8 in

Seasons and rigs are on the Cutthroat Trout guide.

Fish stocked per year

  • 1,5002012
  • 1,5002014
  • 1,7502016
  • 2,0002018
  • 2,2002020
  • 2,2102021
  • 2,0002022
  • 2,0002023
  • 8352024
  • 5,2392025

Stocking history

Source: Montana Fish, Wildlife & Parks.
Date Species Quantity Avg. length Source
September 24, 2025 Cutthroat Trout 5,239 4.27 in report
September 25, 2024 Cutthroat Trout 835 4.17 in report
August 29, 2023 Cutthroat Trout 2,000 2.97 in report
August 8, 2022 Cutthroat Trout 2,000 2.74 in report
August 6, 2021 Cutthroat Trout 2,210 3.01 in report
July 28, 2020 Cutthroat Trout 2,200 2.83 in report
August 7, 2018 Cutthroat Trout 2,000 2.33 in report
July 18, 2016 Cutthroat Trout 1,750 7.7 in report
September 3, 2014 Cutthroat Trout 1,000 3 in report
September 3, 2014 Cutthroat Trout 500 12 in report
May 14, 2012 Cutthroat Trout 1,500 7.4 in report

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