Reservoir · Fallon, Montana
South Sandstone Reservoir
At a glance
- Area
- 44 ha (109 acres)
Who lives here
- Northern pike Esox luciusStocked · 2026 · Fish stocking: Montana Fish, Wildlife & Parks, Fisheries Information System (Fish Stocking Locations)
- Walleye Sander vitreusStocked · 2026 · Fish stocking: Montana Fish, Wildlife & Parks, Fisheries Information System (Fish Stocking Locations)
- Yellow perch Perca flavescensStocked · 2026 · Fish stocking: Montana Fish, Wildlife & Parks, Fisheries Information System (Fish Stocking Locations)
Not listed doesn't mean no fish.
Stocking
| Year | Species | Stage | Number |
|---|---|---|---|
| Jun 25, 2026 | Yellow Perch | 100,000 | |
| Jun 15, 2026 | Northern Pike | 1,500 | |
| Jun 15, 2026 | Walleye | 10,000 | |
| Jun 18, 2025 | Walleye | 10,000 | |
| Jun 6, 2025 | Northern Pike | 1,571 | |
| May 6, 2025 | Northern Pike | 252,000 | |
| Jun 19, 2024 | Walleye | 10,000 | |
| Jun 29, 2023 | Walleye | 10,000 | |
| Jun 17, 2022 | Walleye | 10,000 | |
| Jun 16, 2022 | Northern Pike | 1,545 | |
| May 3, 2022 | Northern Pike | 300,000 | |
| Jun 25, 2021 | Walleye | 10,000 | |
| Jun 9, 2020 | Northern Pike | 1,507 | |
| Jun 9, 2020 | Walleye | 10,000 | |
| Jun 25, 2019 | Walleye | 10,000 | |
| Jun 20, 2018 | Walleye | 10,000 | |
| Jun 19, 2018 | Northern Pike | 1,520 | |
| May 22, 2018 | Northern Pike | 300,000 | |
| Jun 15, 2017 | Walleye | 10,280 | |
| Jun 14, 2016 | Walleye | 10,000 |
As the agency publishes it. Newest first: 20 of 22.
Getting on the water
- South SandstoneBoat launch · Montana Fish, Wildlife & Parks
Listed by public agencies. A listed site doesn't make the water or its shore open to fishing: when in doubt, it's unknown. Check signs and local rules.
The rules
Summary, not the law. Check the official regulations before you fish.
HuntGrid has no rules for this water yet.
Official regulations: Montana Fish, Wildlife & Parks
What's biting
This water is too small for community summaries: on a small water a summary could point to someone's spot.
About this page
Sources and licences:
- U.S. Geological Survey, National Hydrography Dataset Plus High Resolution (NHDPlus HR); U.S. Census Bureau, TIGER/Line® Shapefiles 2025: counties and states · Public domain (U.S. Government work, 17 U.S.C. §105)
- Fish stocking: Montana Fish, Wildlife & Parks, Fisheries Information System (Fish Stocking Locations) · Shown unmodified with credit to FWP (owner approved 2026-10-19): Montana FWP ArcGIS item fc35d749b16643aab629f9a05cf4b897 (Montana Fish Stocking Locations, read 2026-10-19): "This data set is provided "as is" without warranty of any kind"; fwp.mt.gov/terms-of-use allows copying "for personal or informational use … if the documents are not modified": shown under the owner's 2026-10-19 rule as FWP published it. Credit the agency; remove if asked.
- Montana Fish, Wildlife & Parks · No licence grant; FWP Terms of Use allow personal or informational use, unmodified (owner approved 2026-10-19)
The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.