When was Clarks Reservoir last stocked?

The latest reported stocking was May 5, 2026 (rainbow trout, 2,000 fish), according to Montana agency reports.

How often is Clarks Reservoir stocked?

It was stocked once in the last 12 months.

Is Clarks Reservoir stocked often?

The second most stocked of 9 waters in Prairie County. 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 Clarks Reservoir?

Rainbow trout (2 stockings, 4,000 fish).

Clarks Reservoir trout stocking

Prairie County, Montana · lake · 2,813 ft elevation

Clarks Reservoir was last stocked 6 months ago (May 5, 2026). We have 2 stockings on record since May 12, 2025, 1 in the last 12 months (2,000 fish). Species stocked: rainbow trout.

Last stocked

6 months ago

May 5, 2026

Next planned

Not announced

Last 12 months

1 stocking

2,000 fish

On record

2 stockings

since May 12, 2025

The second most stocked of 9 waters in Prairie County.
Stocked about as often as a typical Montana water on our record.

Weather at Clarks Reservoir

This Afternoon
65°F
Mostly Sunny
wind 9 mph
Tonight
36°F
Mostly Cloudy
7% rain · wind 9 mph
Monday
55°F
Mostly Sunny
wind 3 to 7 mph
Monday Night
36°F
Mostly Cloudy
9% rain · wind 3 mph
Tuesday
58°F
Partly Sunny
12% rain · wind 2 to 18 mph
Tuesday Night
36°F
Partly Cloudy
1% rain · wind 7 to 10 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	4,000	2,000	2.8 in

Stocking history

20261 stocking · 2,000 fish

Date	Species	Fish	Size	Since previous	Hatchery
May 5Latest Tuesday	Rainbow trout	2,000	2.8 in	358 days	Miles City Fish Hatchery

20251 stocking · 2,000 fish

Date	Species	Fish	Size	Since previous	Hatchery
May 12 Monday	Rainbow trout	2,000	2.3 in		Miles City Fish 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 Clarks Reservoir?

Prairie 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 Clarks Reservoir

South Fork Reservoirlake · 1 mistocked May 5, 2026
Reukauf Reservoirlake · 3 mistocked May 5, 2026
Haughian Reservoir #1 (; Henry Haughian Trout Pond)lake · 4 mistocked May 5, 2026
Silvertip Reservoirlake · 6 mistocked May 5, 2026
Cap Rock Reservoirlake · 15 mistocked Jun 17, 2026
Kountz Pondlake · 18 mistocked May 12, 2026
Hagloffs Reservoirlake · 24 mistocked May 26, 2026

All stocked waters in Prairie County Stocked this week in Montana

Questions about Clarks Reservoir

When was Clarks Reservoir last stocked?: The latest reported stocking was May 5, 2026 (rainbow trout, 2,000 fish), according to Montana agency reports.
How often is Clarks Reservoir stocked?: It was stocked once in the last 12 months.
Is Clarks Reservoir stocked often?: The second most stocked of 9 waters in Prairie County. 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 Clarks Reservoir?: Rainbow trout (2 stockings, 4,000 fish).