Marias River trout stocking
Chouteau County, Montana · stream · 2,551 ft elevation
Marias River was last stocked 8 weeks ago (Sep 17, 2026). We have 4 stockings on record since Jul 17, 2025, 2 in the last 12 months (21,002 fish). Most stockings come in July and September. Species stocked: rainbow trout, brown trout.
- The most stocked water in Chouteau County (4 stocking days on record).
- Stocked more often than 83% of Montana waters on our record.
River conditions
Nearest USGS gage: Teton River at Loma MT (2 km away, on a different stream or lake).
- Flow
- 0 cfs
- Gage height
- 2.20 ft
Latest reading Nov 9, 2026, 8:30 AM UTC. USGS data are provisional. Gage page at USGS.
Weather at Marias River
- Today46°FSunnywind 3 mph
- Tonight28°FPartly Cloudywind 3 mph
- Thursday55°FMostly Sunnywind 2 to 12 mph
- Thursday Night34°FPartly Cloudywind 9 mph
- Friday56°FSunnywind 7 to 16 mph
- Friday Night40°FPartly Cloudywind 12 to 17 mph
Forecast from the National Weather Service for this location, refreshed hourly.
When is Marias River stocked?
Most stockings come in July and September.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | ||||||||||
| 2025 | 1 | 1 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 4 | 27,244 | 6,811 | 7.3 in |
| Brown trout | 2 | 9,988 | 4,994 | 6.8 in |
Stocking history
20262 stockings · 21,002 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Sep 17Latest Thursday · 8 weeks ago | Brown troutRainbow trout | 15,998 | 6.9 in | 62 days | Big Springs Trout Hatchery |
Jul 17 Friday | Rainbow trout | 5,004 | 8.2 in | 317 days | Big Springs Trout Hatchery |
20252 stockings · 16,230 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Sep 3 Wednesday | Brown troutRainbow trout | 12,152 | 6.9 in | 48 days | Big Springs Trout Hatchery |
Jul 17 Thursday | Rainbow trout | 4,078 | 5.9 in | Big Springs Trout Hatchery |
From Montana fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Montana fishing regulations.
Where is Marias River?
Chouteau County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Marias River
- Schoonover Reservoir 2lake · 6 mistocked Jun 22, 2026
- Crow Coulee Reservoirlake · 11 mistocked Jun 18, 2026
- Leningtons Reservoirlake · 11 mistocked Jun 22, 2026
- Eightmile Springs (; Tunis)lake · 18 mistocked May 13, 2026
- Lanning Reservoirlake · 23 mistocked Jun 15, 2026
All stocked waters in Chouteau CountyStocked this week in Montana
Questions about Marias River
- When was Marias River last stocked?
- The latest reported stocking was Sep 17, 2026 (brown trout and rainbow trout, 15,998 fish), according to Montana agency reports.
- How often is Marias River stocked?
- It was stocked 2 times in the last 12 months. Across all years on record, most stockings come in July and September.
- Is Marias River stocked often?
- The most stocked water in Chouteau County (4 stocking days on record). Stocked more often than 83% of Montana waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Marias River?
- Rainbow trout (4 stockings, 27,244 fish); Brown trout (2 stockings, 9,988 fish).