When was Ruby River Reservoir last stocked?

The latest reported stocking was Jun 22, 2026 (rainbow trout, 52,428 fish), according to Montana agency reports.

How often is Ruby River Reservoir stocked?

It was stocked once in the last 12 months.

Is Ruby River Reservoir stocked often?

Tied for the most stocked water in Madison 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 Ruby River Reservoir?

Rainbow trout (2 stockings, 101,124 fish).

Ruby River Reservoir trout stocking

Madison County, Montana · lake · 5,395 ft elevation

Ruby River Reservoir was last stocked 5 months ago (Jun 22, 2026). We have 2 stockings on record since Jun 24, 2025, 1 in the last 12 months (52,428 fish). Species stocked: rainbow trout.

Last stocked

5 months ago

Jun 22, 2026

Next planned

Not announced

Last 12 months

1 stocking

52,428 fish

On record

2 stockings

since Jun 24, 2025

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

River conditions

USGS gage: Ruby River below reservoir near Alder, MT (3 km away).

Flow: 43 cfs; about normal for the last six weeks
Gage height: 2.33 ft

Streamflow, last six weeks (cfs), daily. Latest: 43 cfs on Nov 8.

Latest reading Nov 9, 2026, 8:45 AM UTC. USGS data are provisional. Gage page at USGS.

Weather at Ruby River Reservoir

This Afternoon
56°F
Partly Sunny
1% rain · wind 14 to 17 mph
Tonight
32°F
Mostly Cloudy
2% rain · wind 8 to 15 mph
Monday
54°F
Partly Sunny
1% rain · wind 7 to 14 mph
Monday Night
35°F
Mostly Cloudy
4% rain · wind 10 to 17 mph
Tuesday
51°F
Mostly Sunny
4% rain · wind 9 to 15 mph
Tuesday Night
29°F
Partly Cloudy
wind 12 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	101,124	50,562	4.9 in

Stocking history

20261 stocking · 52,428 fish

Date	Species	Fish	Size	Since previous	Hatchery
Jun 22Latest Monday	Rainbow trout	52,428	3.8 in	363 days	Bluewater Springs Trout Hatchery

20251 stocking · 48,696 fish

Date	Species	Fish	Size	Since previous	Hatchery
Jun 24 Tuesday	Rainbow trout	48,696	4.9 in		Bluewater 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 Ruby River Reservoir?

Madison 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 Ruby River Reservoir

Twin Lake (Upper) (Axolotl)lake · 13 mistocked Jul 16, 2025

All stocked waters in Madison County Stocked this week in Montana

Questions about Ruby River Reservoir

When was Ruby River Reservoir last stocked?: The latest reported stocking was Jun 22, 2026 (rainbow trout, 52,428 fish), according to Montana agency reports.
How often is Ruby River Reservoir stocked?: It was stocked once in the last 12 months.
Is Ruby River Reservoir stocked often?: Tied for the most stocked water in Madison 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 Ruby River Reservoir?: Rainbow trout (2 stockings, 101,124 fish).