When was Sibley Lake last stocked?

The latest reported stocking was Sep 1 to 30, 2026 (rainbow trout, 1,000 fish), according to Wyoming agency reports.

How often is Sibley Lake stocked?

It was stocked 3 times in the last 12 months. Across all years on record, most stockings come in June to July and September.

Is Sibley Lake stocked often?

The second most stocked of 29 waters in Sheridan County. Stocked more often than 96% of Wyoming waters on our record. We count each day the agency reported stocking it.

What kind of trout are stocked in Sibley Lake?

Rainbow trout (19 stockings, 34,739 fish); Yellowstone cutthroat trout (10 stockings, 17,478 fish); Snake River cutthroat trout (1 stocking, 3,095 fish).

Sibley Lake trout stocking

Sheridan County, Wyoming · lake · about 7,943 ft elevation

Sibley Lake was last stocked 4 weeks ago (Sep 1 to 30, 2026). We have 29 stockings on record since Sep 1, 2016, 3 in the last 12 months (4,923 fish). Most stockings come in June to July and September. Species stocked: rainbow trout, Yellowstone cutthroat trout, Snake River cutthroat trout.

Last stocked

4 weeks ago

Sep 1 to 30, 2026

Next planned

Not announced

Last 12 months

3 stockings

4,923 fish

On record

29 stockings

since Sep 1, 2016

The second most stocked of 29 waters in Sheridan County.
Stocked more often than 96% of Wyoming waters on our record.

Weather at Sibley Lake

Tonight
35°F
Partly Cloudy
10% rain · wind 6 mph
Tuesday
59°F
Sunny
wind 5 to 8 mph
Tuesday Night
37°F
Mostly Clear
wind 5 mph
Wednesday
56°F
Sunny
2% rain · wind 5 to 12 mph
Wednesday Night
32°F
Partly Cloudy
5% rain · wind 5 to 8 mph
Thursday
57°F
Sunny
7% rain · wind 7 to 12 mph

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

When is Sibley Lake stocked?

Most stockings come in June to July and September.

By month, all years

Stockings of Sibley Lake by month, all years on record. This month is shown in blue.

Year by year

	May	Jun	Jul	Aug	Sep	Nov
2026	1	1			1
2025		1		1	1
2024		1	1		1
2023		1	1		1
2022		1	1		1
2021		1	1	1
2020		1				1
2019		1	1	1

What is stocked

Species	Stockings	Fish	Fish per stocking	Typical size
Rainbow trout	19	34,739	1,828	8.4 in
Yellowstone cutthroat trout	10	17,478	1,748	9.5 in
Snake River cutthroat trout	1	3,095	3,095	6.1 in

Stocking history

20263 stockings · 4,923 fish

Date	Species	Fish	Size
SeptemberLatest sometime this month	Rainbow trout	1,000	9.2 in
June sometime this month	Rainbow trout	2,016	8.6 in
May sometime this month	Rainbow trout	1,907	8.5 in

20253 stockings · 7,575 fish

Date	Species	Fish	Size
September sometime this month	Rainbow trout	1,025	8.4 in
August sometime this month	Yellowstone cutthroat trout	2,275	3.9 in
June sometime this month	Rainbow trout	4,275	8.6 in

20243 stockings · 5,254 fish

Date	Species	Fish	Size
September sometime this month	Rainbow trout	1,001	7.2 in
July sometime this month	Rainbow trout	2,749	9.0 in
June sometime this month	Rainbow trout	1,504	8.4 in

20233 stockings · 4,642 fish

September rainbow trout, 1,026 fish
July rainbow trout, 1,377 fish
June rainbow trout, 2,239 fish

20223 stockings · 4,555 fish

September rainbow trout, 1,010 fish
July rainbow trout, 2,211 fish
June rainbow trout, 1,334 fish

20213 stockings · 5,451 fish

August rainbow trout, 1,062 fish
July rainbow trout, 1,104 fish
June rainbow trout, 3,285 fish

20202 stockings · 4,614 fish

November rainbow trout, 1,014 fish
June rainbow trout, 3,600 fish

20193 stockings · 8,287 fish

August Snake River cutthroat trout, Yellowstone cutthroat trout, 5,564 fish
July Yellowstone cutthroat trout, 1,418 fish
June Yellowstone cutthroat trout, 1,305 fish

20182 stockings · 3,603 fish

August Yellowstone cutthroat trout, 316 fish
June Yellowstone cutthroat trout, 3,287 fish

20173 stockings · 4,560 fish

September Yellowstone cutthroat trout, 460 fish
July Yellowstone cutthroat trout, 901 fish
June Yellowstone cutthroat trout, 3,199 fish

20161 stocking · 1,848 fish

September Yellowstone cutthroat trout, 1,848 fish

From Wyoming 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: Wyoming fishing regulations.

Where is Sibley Lake?

Sheridan County, Wyoming. Approximate: the marker is the USGS place-name point for this water, not an agency location.

Directions Larger map Wyoming fishing regulations

Stocked waters near Sibley Lake

Owen Creekstream · 5 mistocked Jul 1, 2026
Fool Creekstream · 7 mistocked Jun 1, 2026
Duncan Lakelake · 8 mistocked Jun 1, 2026
Calvin Lakelake · 10 mistocked Jul 1, 2026
Sawmill Reservoirlake · 11 mistocked Jul 1, 2026
Duck Pondpond · 13 mistocked Jun 1, 2026
Weston Reservoirlake · 16 mistocked Jul 1, 2026
Lake Adelaidelake · 17 mistocked Jun 1, 2026

All stocked waters in Sheridan County Stocked this week in Wyoming

Questions about Sibley Lake

When was Sibley Lake last stocked?: The latest reported stocking was Sep 1 to 30, 2026 (rainbow trout, 1,000 fish), according to Wyoming agency reports.
How often is Sibley Lake stocked?: It was stocked 3 times in the last 12 months. Across all years on record, most stockings come in June to July and September.
Is Sibley Lake stocked often?: The second most stocked of 29 waters in Sheridan County. Stocked more often than 96% of Wyoming waters on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Sibley Lake?: Rainbow trout (19 stockings, 34,739 fish); Yellowstone cutthroat trout (10 stockings, 17,478 fish); Snake River cutthroat trout (1 stocking, 3,095 fish).

Stocking data from the Wyoming Game and Fish Department's fish stocking report, which records stockings by month with species, number and average length.