When was Sentinel Reservoir last stocked?

The latest reported stocking was May 7, 2026 (rainbow trout, 6,000 fish), according to Montana agency reports.

How often is Sentinel Reservoir stocked?

It was stocked once in the last 12 months.

Is Sentinel Reservoir stocked often?

Tied for the most stocked water in Phillips County (2 stocking days on record). Stocked about as often as a typical Montana water on our record. We count each day the agency reported stocking it.

What kind of trout are stocked in Sentinel Reservoir?

Rainbow trout (2 stockings, 12,000 fish).

Sentinel Reservoir trout stocking

Phillips County, Montana · lake · 2,987 ft elevation

Sentinel Reservoir was last stocked 6 months ago (May 7, 2026). We have 2 stockings on record since May 14, 2025, 1 in the last 12 months (6,000 fish). Species stocked: rainbow trout.

Last stocked

6 months ago

May 7, 2026

Next planned

Not announced

Last 12 months

1 stocking

6,000 fish

On record

2 stockings

since May 14, 2025

Tied for the most stocked water in Phillips County (2 stocking days on record).
Stocked about as often as a typical Montana water on our record.

Weather at Sentinel Reservoir

Today
63°F
Sunny
wind 3 to 17 mph
Tonight
41°F
Partly Cloudy
wind 5 mph
Sunday
66°F
Mostly Cloudy
wind 3 to 16 mph
Sunday Night
41°F
Mostly Cloudy
wind 9 to 18 mph
Monday
54°F
Partly Sunny
wind 3 to 9 mph
Monday Night
39°F
Mostly Cloudy
1% rain · wind 2 to 7 mph

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

What is stocked

Species	Stockings	Fish	Fish per stocking	Typical size
Rainbow trout	2	12,000	6,000	3.2 in

Stocking history

20261 stocking · 6,000 fish

Date	Species	Fish	Size	Since previous	Hatchery
May 7Latest Thursday	Rainbow trout	6,000	2.2 in	358 days	Fort Peck Hatchery

20251 stocking · 6,000 fish

Date	Species	Fish	Size	Since previous	Hatchery
May 14 Wednesday	Rainbow trout	6,000	3.2 in		Fort Peck 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 Sentinel Reservoir?

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

Directions Larger map Montana fishing regulations

Stocked waters near Sentinel Reservoir

Paleface Reservoirlake · 2 mistocked Jun 8, 2026
Batosh Reservoirlake · 4 mistocked May 7, 2026
Spanky Reservoirlake · 4 mistocked May 7, 2026
Rotator Cup Reservoirlake · 4 mistocked May 7, 2026
Rebate Reservoir (; Batosh Reservoir)lake · 5 mistocked May 7, 2026
Flinstone Reservoirlake · 8 mistocked Jun 8, 2026
Current Reservoirlake · 9 mistocked May 7, 2026
Hump Lakelake · 9 mistocked May 7, 2026

All stocked waters in Phillips County Stocked this week in Montana

Questions about Sentinel Reservoir

When was Sentinel Reservoir last stocked?: The latest reported stocking was May 7, 2026 (rainbow trout, 6,000 fish), according to Montana agency reports.
How often is Sentinel Reservoir stocked?: It was stocked once in the last 12 months.
Is Sentinel Reservoir stocked often?: Tied for the most stocked water in Phillips County (2 stocking days on record). Stocked about as often as a typical Montana water on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Sentinel Reservoir?: Rainbow trout (2 stockings, 12,000 fish).