Timberline Lake Fish Stocking
Montana · 1932–2020 on record
According to Montana fish & wildlife agency, Timberline Lake was last stocked July 21, 2020 with Cutthroat Trout. Timberline Lake has 16 stocking records on file, spanning 1932–2020, with about 46,868 fish stocked over that period.
When Timberline Lake is stocked
Timberline Lake is typically stocked in summer, most often in August — 9 stocking events in that peak month.
Angler's Field Guide
Fishing Tips & Stocking Guide for Timberline 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 Timberline 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 Timberline Lake was last stocked July 21, 2020, 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 Timberline 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.
Brook Trout Profile Tips
A favorite of high-country and small-stream anglers; often more willing to strike than brown or rainbow trout in the same water.
Recommended Tackle for Timberline 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 Timberline Lake, freshest activity first.
Ruby River Reservoir
9 mi2 species · 189 records
Last stocked June 2026
Elk Lake
15 mi3 species · 198 records
Last stocked May 2026
Blacktail Meadows Kids Pond
15 mi2 species · 63 records
Last stocked May 2025
Vigilante Pond
20 mi2 species · 253 records
Last stocked July 2017
KOA Dredge Pond
15 mi1 species · 23 records
Last stocked June 2000
Alder Gulch Creek
16 mi3 species · 316 records
Last stocked June 1985
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 21, 2020 | Cutthroat Trout | 400 | 1.96" | Montana fish & wildlife agency |
| July 24, 2018 | Cutthroat Trout | 400 | 1.89" | Montana fish & wildlife agency |
| August 5, 2012 | Cutthroat Trout | 400 | 1.81" | Montana fish & wildlife agency |
| August 4, 2006 | Cutthroat Trout | 360 | 1.94" | Montana fish & wildlife agency |
| August 15, 2002 | Cutthroat Trout | 400 | 2.5" | Montana fish & wildlife agency |
| August 12, 1998 | Cutthroat Trout | 400 | 1.8" | Montana fish & wildlife agency |
| August 10, 1994 | Cutthroat Trout | 400 | 2.5" | Montana fish & wildlife agency |
| August 15, 1990 | Cutthroat Trout | 400 | 1.7" | Montana fish & wildlife agency |
Show 8 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 31, 1986 | Cutthroat Trout | 490 | 1" | Montana fish & wildlife agency |
| August 29, 1979 | Cutthroat Trout | 1,000 | 2" | Montana fish & wildlife agency |
| July 16, 1976 | Cutthroat Trout | 1,018 | 2" | Montana fish & wildlife agency |
| July 2, 1934 | Brook Trout | 5,600 | 3" | Montana fish & wildlife agency |
| June 26, 1934 | Brook Trout | 5,600 | 3" | Montana fish & wildlife agency |
| August 24, 1933 | Brook Trout | 12,000 | 2" | Montana fish & wildlife agency |
| August 23, 1933 | Brook Trout | 12,000 | 2" | Montana fish & wildlife agency |
| July 14, 1932 | Brook Trout | 6,000 | 3" | Montana fish & wildlife agency |
Frequently asked
When was Timberline Lake last stocked?
According to Montana fish & wildlife agency, Timberline Lake was last stocked July 21, 2020 with Cutthroat Trout.
What fish species are stocked in Timberline Lake?
Timberline Lake is stocked with Cutthroat Trout and Brook Trout.
What time of year is Timberline Lake stocked?
Timberline Lake is typically stocked in summer, most often in August.
How often is Timberline Lake stocked?
Timberline Lake is stocked intermittently — 16 recorded stockings between 1932 and 2020.
How many fish have been stocked in Timberline Lake?
About 46,868 fish have been stocked in Timberline Lake across 16 recorded events since 1932, per Montana fish & wildlife agency.
What size are the fish stocked in Timberline Lake?
Fish stocked in Timberline Lake average about 2.1 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Timberline 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 Timberline Lake?
Freshly stocked trout in Timberline 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.