Big Reservoir trout stocking

Montana · lake

Big Reservoir was last stocked 5 months ago (May 8, 2026). We have 2 stockings on record since May 17, 2025, 1 in the last 12 months (2,500 fish). Species stocked: rainbow trout.

Weather at Big Reservoir

• Tonight
  56°F
  Mostly Clear
  wind 12 mph
• Friday
  79°F
  Mostly Sunny
  wind 12 to 24 mph
• Friday Night
  53°F
  Mostly Cloudy
  wind 15 to 21 mph
• Saturday
  66°F
  Sunny
  wind 14 to 18 mph
• Saturday Night
  43°F
  Partly Cloudy
  2% rain · wind 5 to 13 mph
• Sunday
  63°F
  Partly Sunny
  3% rain · wind 5 to 10 mph

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

What is stocked

Stocking history

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.

Where is Big Reservoir?

Montana. The marker is the agency's location for this water; streams are often stocked at several access points.

DirectionsLarger map

Stocked waters near Big Reservoir

• Glasgow Base Pond (; Glasgow AFB Pond, Upper)lake · 10 mistocked Jun 16, 2026
• VR 009 Reservoir (; Glasgow AFB Pond, Lower)lake · 10 mistocked Jun 16, 2026
• Home Run Pondlake · 13 mistocked Jun 5, 2026
• Shoot Reservoirlake · 19 mistocked Jun 11, 2025
• Fort Peck Trout Pondlake · 19 mistocked Jul 1, 2026
• Milk River (Lower Milk River, Upper Milk River, Middle Milk River)stream · 20 mistocked May 6, 2026
• Flat Lakelake · 22 mistocked Jun 5, 2025

Stocked this week in Montana

Questions about Big Reservoir

When was Big Reservoir last stocked?

The latest reported stocking was May 8, 2026 (rainbow trout, 2,500 fish), according to Montana agency reports.

How often is Big Reservoir stocked?

It was stocked 1 times in the last 12 months.

What kind of trout are stocked in Big Reservoir?

Rainbow trout (2 stockings, 5,000 fish).