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Stocked last season

Hatfield Reservoir Fish Stocking

Montana · 1968 to 2025 on record

According to FWP records, Hatfield Reservoir has 55 stocking records on file across 1 species. The most recent stocking season represented is 2025.

Hatfield Reservoir stocking
Hatfield Reservoir photo
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55
Stocking records
154,122
Fish reported stocked
1
Species
2025
Latest season

Stocking activity by season

54 seasons on record, most in the 1998 (2 records). Click a bar to jump to that season below.

1 records
2025 · 1,000 fish
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2022
2023
2024
2025

Stocking records per season (labelled by the season's end year). Montana's source reports by season, so records aren't broken out by month. Showing the most recent 25 of 54 seasons — the full history is listed below.

Most-stocked species

Rainbow Trout 55 records

Location

48.7877, -105.0771

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Stocking history

Values shown exactly as the agency reported them; species names are normalized for search.

SpeciesFish stockedSizePhase
Rainbow Trout 1,000 7.03 in Arlee X Erwin - Ennis

A stocking record does not guarantee fish remain present or may legally be harvested. Check current Montana fishing regulations →

Quick facts

Latest season 2025
Most stocked Rainbow Trout
Species Rainbow Trout
Seasons on record 1968 – 2025
Fish reported 154,122
Coordinates 48.7877, -105.0771

Data source

Compiled from public records published by the Montana Fish, Wildlife & Parks. StockedSpots is independent and not affiliated with or endorsed by FWP.

Source: Montana Fish, Wildlife & Parks (FWP). Data last checked September 1, 2026.
View FWP source →

Nearby stocked waters

Frequently asked questions

FWP records show Hatfield Reservoir stocked with Rainbow Trout.

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