Nilan Reservoir trout stocking
Lewis and Clark County, Montana · lake · 4,425 ft elevation
Nilan Reservoir was last stocked 5 months ago (May 26, 2026). We have 2 stockings on record since Jun 5, 2025, 1 in the last 12 months (40,000 fish). Species stocked: rainbow trout.
Last stocked
5 months ago
May 26, 2026
Next planned
Not announced
Last 12 months
1 stocking
40,000 fish
On record
2 stockings
since Jun 5, 2025
- Number 5 of 12 stocked waters in Lewis and Clark County by stocking days.
- Stocked about as often as a typical Montana water on our record.
Weather at Nilan Reservoir
- Today51°FMostly Sunnywind 2 mph
- Tonight32°FMostly Clearwind 1 to 8 mph
- Thursday49°FPartly Sunnywind 8 to 13 mph
- Thursday Night34°FPartly Cloudywind 10 to 15 mph
- Friday50°FMostly Sunnywind 10 to 16 mph
- Friday Night40°FMostly Cloudy1% rain · wind 9 to 23 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 | 80,000 | 40,000 | 3.4 in |
Stocking history
20261 stocking · 40,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 26Latest Tuesday | Rainbow trout | 40,000 | 3.2 in | 355 days | Giant Springs Trout Hatchery |
20251 stocking · 40,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
Jun 5 Thursday | Rainbow trout | 40,000 | 4.6 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 Nilan Reservoir?
Lewis and Clark County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Nilan Reservoir
- Swazee Lakelake · 5 mistocked Sep 11, 2026
- Willow Creek Reservoirlake · 7 mistocked Jul 13, 2026
- Clemons Coulee Reservoirlake · 10 mistocked Jun 17, 2026
- Tunnel Lakelake · 12 mistocked May 21, 2026
- Wood Lakelake · 13 mistocked May 21, 2026
- Renshaw Lakelake · 13 mistocked Sep 17, 2025
- Pishkun Reservoirlake · 15 mistocked May 1, 2026
- Anderson Pondlake · 19 mistocked Jun 17, 2026
All stocked waters in Lewis and Clark CountyStocked this week in Montana
Questions about Nilan Reservoir
- When was Nilan Reservoir last stocked?
- The latest reported stocking was May 26, 2026 (rainbow trout, 40,000 fish), according to Montana agency reports.
- How often is Nilan Reservoir stocked?
- It was stocked once in the last 12 months.
- Is Nilan Reservoir stocked often?
- Number 5 of 12 stocked waters in Lewis and Clark County by stocking days. 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 Nilan Reservoir?
- Rainbow trout (2 stockings, 80,000 fish).