Copper Lake Fish Stocking
Montana · 1954–2025 on record
According to Montana fish & wildlife agency, Copper Lake was last stocked September 17, 2025 with Cutthroat Trout. Copper Lake has 15 stocking records on file, spanning 1954–2025, with about 16,441 fish stocked over that period.
When Copper Lake is stocked
Copper Lake is typically stocked in summer, most often in August — 8 stocking events in that peak month.
Angler's Field Guide
Fishing Tips & Stocking Guide for Copper Lake
Practical advice on fish behavior, recommended tackle, and state regulations for anglers fishing in Montana.
Post-Plant Behavior & Timing
Hatchery-raised fish are conditioned to pelleted feed and open raceways. Following a release into Copper Lake, they typically congregate in schools near public access points, boat ramps, or inlets for the first 24 to 48 hours while adjusting to natural water conditions.
Since Copper Lake was last stocked September 17, 2025, anglers visiting within 1 to 2 weeks of a reported event generally experience the highest activity before fish disperse into deeper cover.
State Regulations & Licensing
- •Fishing License: A valid Montana freshwater fishing license is required for anglers age 16 and older.Purchase Montana license online →
- •Official Rules & Limits: Bag limits, bait restrictions, and seasonal boundaries are set by Montana fish & wildlife agency.Official Montana regulations guidebook →
- •Ethical Conservation: Use barbless hooks and keep fish submerged in water during unhooking.Trout Thermal Advisory: When water temperatures rise above 68°F (20°C), released trout face severe mortality from thermal exhaustion. Target warmwater species or fish early in the morning when lakes and streams warm up.
Recommended Tackle & Presentations
Techniques tailored to the species stocked in Copper Lake:
Stocked Trout Tactics
Use light 4–6 lb monofilament or fluorocarbon line. Float scented dough bait (PowerBait) 12–18" off bottom using a sliding slip-sinker rig with a size 14–16 treble hook. For active casting, throw 1/16 to 1/8 oz inline spinners (Panther Martin, Rooster Tail) or small spoons (Kastmaster) along drop-offs.
Cutthroat Trout Profile Tips
Known for being relatively easy to catch on dry flies, making it a favorite of western fly anglers; many subspecies are managed under catch-and-release rules to protect native populations.
Rainbow Trout Profile Tips
The most commonly targeted stocked trout in the country, taken on bait, spinners, and flies alike; a common first fish for new anglers.
Recommended Tackle for Copper Lake
Field-tested tackle and presentations matched to the species stocked here.
Berkley PowerBait Floating Trout Dough
Hatchery-raised trout are conditioned to pelleted scents; scented dough floated 12–18 inches off bottom consistently triggers strikes.
Panther Martin Classic Teardrop Inline Spinner
The heavy convex blade spins instantly upon retrieval, sending vibration through the water that triggers aggressive reaction bites along drop-offs.
Sliding Sinker & Treble Hook Rigging Kit
Sliding egg sinkers allow cautious trout to run with bait without feeling line drag, while size 14–16 treble hooks keep dough bait securely pinned.
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Nearby stocked waters
Other stocked waters near Copper Lake, freshest activity first.
Andres Pone
2 mi1 species · 3 records
Last stocked June 2011
Mission Reservoir
8 mi2 species · 94 records
Last stocked June 2008
St Marys Lake
10 mi3 species · 48 records
Last stocked May 2008
Jocko River
11 mi2 species · 203 records
Last stocked June 1991
Middle Fork Jocko River
10 mi1 species · 6 records
Last stocked September 1969
South Fork Jocko River
13 mi1 species · 3 records
Last stocked September 1969
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| September 17, 2025 | Cutthroat Trout | 300 | 2.23" | Montana fish & wildlife agency |
| July 31, 2019 | Cutthroat Trout | 300 | 1.93" | Montana fish & wildlife agency |
| July 29, 2014 | Cutthroat Trout | 300 | 1.81" | Montana fish & wildlife agency |
| August 7, 2007 | Cutthroat Trout | 300 | 1.4" | Montana fish & wildlife agency |
| August 2, 2000 | Cutthroat Trout | 300 | 1.6" | Montana fish & wildlife agency |
| August 11, 1993 | Cutthroat Trout | 500 | 1" | Montana fish & wildlife agency |
| August 8, 1989 | Cutthroat Trout | 500 | 1.5" | Montana fish & wildlife agency |
| July 24, 1979 | Cutthroat Trout | 1,000 | 1" | Montana fish & wildlife agency |
Show 7 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 2, 1978 | Cutthroat Trout | 1,500 | 1" | Montana fish & wildlife agency |
| August 2, 1978 | Cutthroat Trout | 1,500 | 1" | Montana fish & wildlife agency |
| August 2, 1975 | Cutthroat Trout | 1,200 | 1" | Montana fish & wildlife agency |
| August 2, 1975 | Cutthroat Trout | 1,200 | 1" | Montana fish & wildlife agency |
| October 6, 1969 | Cutthroat Trout | 1,386 | 2" | Montana fish & wildlife agency |
| October 6, 1969 | Cutthroat Trout | 1,155 | 2" | Montana fish & wildlife agency |
| June 9, 1954 | Rainbow Trout | 5,000 | 3" | Montana fish & wildlife agency |
Frequently asked
When was Copper Lake last stocked?
According to Montana fish & wildlife agency, Copper Lake was last stocked September 17, 2025 with Cutthroat Trout.
What fish species are stocked in Copper Lake?
Copper Lake is stocked with Cutthroat Trout and Rainbow Trout.
What time of year is Copper Lake stocked?
Copper Lake is typically stocked in summer, most often in August.
How often is Copper Lake stocked?
Copper Lake is stocked intermittently — 15 recorded stockings between 1954 and 2025.
How many fish have been stocked in Copper Lake?
About 16,441 fish have been stocked in Copper Lake across 15 recorded events since 1954, per Montana fish & wildlife agency.
What size are the fish stocked in Copper Lake?
Fish stocked in Copper Lake average about 1.6 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Copper Lake?
Yes, all anglers age 16 and older generally need a valid Montana freshwater fishing license. Always review current regulations from Montana fish & wildlife agency for site-specific rules, bag limits, or stamps.
How do you catch stocked trout in Copper Lake?
Freshly stocked trout in Copper Lake typically respond well to floating dough bait (such as PowerBait) floated 12–18 inches off bottom on light 4–6 lb leader, live nightcrawlers under a bobber, and small inline spinners or spoons retrieved along shorelines and drop-offs.