When was Ostle Reservoir (; Antelope Butte) last stocked?

The latest reported stocking was Sep 11, 2026 (rainbow trout, 2 fish), according to Montana agency reports.

How often is Ostle Reservoir (; Antelope Butte) stocked?

It was stocked once in the last 12 months.

Is Ostle Reservoir (; Antelope Butte) stocked often?

The third most stocked of 10 waters in Teton 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 Ostle Reservoir (; Antelope Butte)?

Rainbow trout (2 stockings, 2,202 fish).

Ostle Reservoir (; Antelope Butte) trout stocking

Teton County, Montana · lake · 4,798 ft elevation

Ostle Reservoir (; Antelope Butte) was last stocked 8 weeks ago (Sep 11, 2026). We have 2 stockings on record since Jun 26, 2025, 1 in the last 12 months (2 fish). Species stocked: rainbow trout.

Last stocked

8 weeks ago

Sep 11, 2026

Next planned

Not announced

Last 12 months

1 stocking

2 fish

On record

2 stockings

since Jun 26, 2025

The third most stocked of 10 waters in Teton County.
Stocked about as often as a typical Montana water on our record.

Weather at Ostle Reservoir (; Antelope Butte)

This Afternoon
42°F
Chance Light Rain
44% rain · wind 6 mph
Tonight
31°F
Patchy Fog then Mostly Cloudy
15% rain · wind 6 mph
Monday
49°F
Sunny
wind 2 to 7 mph
Monday Night
31°F
Partly Cloudy
wind 6 mph
Tuesday
55°F
Partly Sunny
wind 0 to 6 mph
Tuesday Night
35°F
Mostly Cloudy
wind 0 to 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	2	2,202	1,101	4.0 in

Stocking history

20261 stocking · 2 fish

Date	Species	Fish	Size	Since previous	Hatchery
Sep 11Latest Friday · 8 weeks ago	Rainbow trout	2	4.0 in	442 days	Giant Springs Trout Hatchery

20251 stocking · 2,200 fish

Date	Species	Fish	Size	Since previous	Hatchery
Jun 26 Thursday	Rainbow trout	2,200	4.9 in		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. Seasons and limits: Montana fishing regulations.

Where is Ostle Reservoir (; Antelope Butte)?

Teton 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 Ostle Reservoir (; Antelope Butte)

Perkins Pondlake · 11 mistocked Jun 17, 2026
Our Lakelake · 13 mistocked Sep 17, 2025
Eureka Reservoirlake · 16 mistocked May 20, 2025
Pishkun Reservoirlake · 21 mistocked May 1, 2026
Tunnel Lakelake · 22 mistocked May 21, 2026
Sock Lakelake · 23 mistocked Sep 17, 2025
Kelly Reservoirlake · 25 mistocked Jun 17, 2026

All stocked waters in Teton County Stocked this week in Montana

Questions about Ostle Reservoir (; Antelope Butte)

When was Ostle Reservoir (; Antelope Butte) last stocked?: The latest reported stocking was Sep 11, 2026 (rainbow trout, 2 fish), according to Montana agency reports.
How often is Ostle Reservoir (; Antelope Butte) stocked?: It was stocked once in the last 12 months.
Is Ostle Reservoir (; Antelope Butte) stocked often?: The third most stocked of 10 waters in Teton 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 Ostle Reservoir (; Antelope Butte)?: Rainbow trout (2 stockings, 2,202 fish).