When was Rock Lake last stocked?

The latest reported stocking was May 21, 2025 (rainbow trout, 3,606 fish), according to Montana agency reports.

Is Rock Lake stocked often?

Number 16 of 23 stocked waters in Lincoln County by stocking days. Stocked less often than most Montana waters on our record. We count each day the agency reported stocking it.

What kind of trout are stocked in Rock Lake?

Rainbow trout (1 stocking, 3,606 fish).

Rock Lake trout stocking

Lincoln County, Montana · lake · 3,513 ft elevation

Rock Lake was last stocked 18 months ago (May 21, 2025). We have 1 stocking on record since May 21, 2025. Species stocked: rainbow trout.

Last stocked

18 months ago

May 21, 2025

Next planned

Not announced

Last 12 months

0 stockings

On record

1 stocking

since May 21, 2025

Number 16 of 23 stocked waters in Lincoln County by stocking days.
Stocked less often than most Montana waters on our record.

Weather at Rock Lake

Today
48°F
Sunny
wind 1 mph
Tonight
27°F
Partly Cloudy
4% rain · wind 1 mph
Thursday
43°F
Mostly Cloudy
8% rain · wind 3 mph
Thursday Night
31°F
Mostly Cloudy
5% rain · wind 3 mph
Friday
47°F
Mostly Cloudy
4% rain · wind 3 mph
Friday Night
33°F
Mostly Cloudy
4% rain · wind 3 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	1	3,606	3,606	5.4 in

Stocking history

20251 stocking · 3,606 fish

Date	Species	Fish	Size	Hatchery
May 21Latest Wednesday	Rainbow trout	3,606	5.4 in	Creston National 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 Rock Lake?

Lincoln 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 Rock Lake

Swisher Lakelake · 3 mistocked May 8, 2026
Tetrault Lake (; Carpenter Lake)lake · 4 mistocked May 6, 2026
Sylvia Lakelake · 10 mistocked Aug 8, 2025
Mcgregor Lakelake · 15 mistocked May 19, 2026
Little Mcgregor Lakelake · 15 mistocked Jun 8, 2026
Middle Thompson Lakelake · 15 mistocked Jun 20, 2025
Lower Thompson Lakelake · 15 mistocked Jun 23, 2026
Sunrise Lakelake · 25 mistocked Jun 25, 2025

All stocked waters in Lincoln County Stocked this week in Montana

Questions about Rock Lake

When was Rock Lake last stocked?: The latest reported stocking was May 21, 2025 (rainbow trout, 3,606 fish), according to Montana agency reports.
Is Rock Lake stocked often?: Number 16 of 23 stocked waters in Lincoln County by stocking days. Stocked less often than most Montana waters on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Rock Lake?: Rainbow trout (1 stocking, 3,606 fish).