When was Bonaparte Lake last stocked?

The latest reported stocking was Apr 1 to 30, 2025 (brown trout, 3,030 fish), according to New York agency reports.

How often is Bonaparte Lake stocked?

Across all years on record, most stockings come in April.

What kind of trout are stocked in Bonaparte Lake?

Brown trout (3 stockings, 9,010 fish); Lake trout (2 stockings, 3,440 fish).

Bonaparte Lake trout stocking

Diana, Lewis County, New York · lake

Bonaparte Lake was last stocked 18 months ago (Apr 1 to 30, 2025). We have 6 stockings on record since Apr 1, 2023. Most stockings come in April. Species stocked: brown trout, lake trout.

Last stocked

18 months ago

Apr 1 to 30, 2025

Next planned

Not announced

Last 12 months

0 stockings

On record

6 stockings

since Apr 1, 2023

River conditions

Nearest USGS gage: WEST BRANCH OSWEGATCHIE RIVER NEAR HARRISVILLE NY (6 km away, on a different stream or lake).

Flow: 71 cfs; lower than usual for the last six weeks
Gage height: 1.44 ft

Streamflow, last six weeks (cfs), daily. Latest: 74 cfs on Sep 23.

Latest reading Sep 25, 2026, 2:30 AM UTC. USGS data are provisional. Gage page at USGS.

Weather at Bonaparte Lake

Tonight
37°F
Clear
wind 3 mph
Friday
68°F
Sunny
wind 2 to 8 mph
Friday Night
45°F
Partly Cloudy
wind 3 to 7 mph
Saturday
66°F
Partly Sunny
5% rain · wind 5 to 10 mph
Saturday Night
49°F
Mostly Cloudy
8% rain · wind 9 mph
Sunday
64°F
Partly Sunny then Slight Chance Rain Showers
23% rain · wind 9 mph

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

When is Bonaparte Lake stocked?

Most stockings come in April.

By month, all years

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

Year by year

	Mar	Apr
2026	1
2025		1
2024		1
2023		1

What is stocked

Species	Stockings	Fish	Fish per stocking	Typical size
Brown trout	3	9,010	3,003	8.1 in
Lake trout	2	3,440	1,720	6.8 in

Stocking history

Date	Species	Fish
Mar 1, 2026 to May 31, 2026planned	Brown trout	3,060
Apr 1 to 30, 2025	Brown trout	3,030
Apr 1 to 30, 2025	Lake trout	1,870
Apr 1 to 30, 2024	Brown trout	3,090
Apr 1 to 30, 2024	Lake trout	1,570
Apr 1 to 30, 2023	Brown trout	2,890

From New York 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.

Where is Bonaparte Lake?

Diana, Lewis County, New York. Approximate: the marker is the USGS place-name point for this water, not an agency location.

Directions Larger map

Stocked waters near Bonaparte Lake

Green Pondpond · 1 mistocked Sep 1, 2025
Quarry Pondpond · 6 mistocked May 1, 2025
Big Hill Pondpond · 6 mistocked Sep 1, 2024
Lake Sylvialake · 7 mistocked Oct 1, 2025
Sylvia Lakelake · 7 mistocked Jun 1, 2025
Round Lakelake · 11 mistocked Sep 1, 2025
Silver Dawn Lakelake · 11 mistocked Sep 1, 2025
Black Creekstream · 12 mistocked May 1, 2025

All stocked waters in Lewis County Stocked this week in New York

Questions about Bonaparte Lake

When was Bonaparte Lake last stocked?: The latest reported stocking was Apr 1 to 30, 2025 (brown trout, 3,030 fish), according to New York agency reports.
How often is Bonaparte Lake stocked?: Across all years on record, most stockings come in April.
What kind of trout are stocked in Bonaparte Lake?: Brown trout (3 stockings, 9,010 fish); Lake trout (2 stockings, 3,440 fish).