When was Martinsdale Reservoir last stocked?

The latest reported stocking was May 28, 2026 (rainbow trout, 29,728 fish), according to Montana agency reports.

How often is Martinsdale Reservoir stocked?

It was stocked 2 times in the last 12 months. Across all years on record, most stockings come in May.

What kind of trout are stocked in Martinsdale Reservoir?

Rainbow trout (4 stockings, 110,000 fish).

Martinsdale Reservoir trout stocking

Montana · lake

Martinsdale Reservoir was last stocked 4 months ago (May 28, 2026). We have 4 stockings on record since May 20, 2025, 2 in the last 12 months (55,000 fish). Most stockings come in May. Species stocked: rainbow trout.

Last stocked

4 months ago

May 28, 2026

Next planned

Not announced

Last 12 months

2 stockings

55,000 fish

On record

4 stockings

since May 20, 2025

River conditions

USGS gage: Musselshell River nr Martinsdale, MT (4 km away).

Flow: 19 cfs; higher than usual for the last six weeks
Gage height: 1.33 ft

Streamflow, last six weeks (cfs), daily. Latest: 20 cfs on Sep 23.

Latest reading Sep 24, 2026, 12:30 PM UTC. USGS data are provisional. Gage page at USGS.

Weather at Martinsdale Reservoir

Tonight
48°F
Mostly Clear
wind 5 to 10 mph
Friday
80°F
Mostly Sunny
wind 5 to 12 mph
Friday Night
42°F
Partly Cloudy
wind 12 to 23 mph
Saturday
66°F
Sunny
wind 13 to 20 mph
Saturday Night
41°F
Mostly Cloudy
3% rain · wind 7 to 13 mph
Sunday
63°F
Partly Sunny
4% rain · wind 8 mph

Forecast from the National Weather Service for this location, refreshed hourly.

When is Martinsdale Reservoir stocked?

Most stockings come in May.

By month, all years

Stockings of Martinsdale Reservoir by month, all years on record. This month is shown in blue.

Year by year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2026					2
2025					2

What is stocked

Species	Stockings	Fish	Fish per stocking	Typical size
Rainbow trout	4	110,000	27,500	5.3 in

Stocking history

Date	Species	Fish	Hatchery
May 28, 2026	Rainbow trout	29,728	Giant Springs Trout Hatchery
May 14, 2026	Rainbow trout	25,272	Giant Springs Trout Hatchery
May 21, 2025	Rainbow trout	20,569	Giant Springs Trout Hatchery
May 20, 2025	Rainbow trout	34,431	Giant 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.

Where is Martinsdale Reservoir?

Montana. The marker is the agency's location for this water; streams are often stocked at several access points.

Directions Larger map

Stocked waters near Martinsdale Reservoir

Hundred Dollar Bill Pond (; Mud Creek Reservoir)lake · 8 mistocked Jun 9, 2026
Bonanza Reservoirlake · 14 mistocked May 27, 2026
Bair Reservoirlake · 17 mistocked Jun 3, 2026
Castle Lakelake · 21 mistocked Sep 17, 2025
Chief Joseph Pondlake · 21 mistocked Jun 5, 2026
Sunlight Lakelake · 24 mistocked Aug 4, 2025

Stocked this week in Montana

Questions about Martinsdale Reservoir

When was Martinsdale Reservoir last stocked?: The latest reported stocking was May 28, 2026 (rainbow trout, 29,728 fish), according to Montana agency reports.
How often is Martinsdale Reservoir stocked?: It was stocked 2 times in the last 12 months. Across all years on record, most stockings come in May.
What kind of trout are stocked in Martinsdale Reservoir?: Rainbow trout (4 stockings, 110,000 fish).