Assure Lake Fish Stocking
Montana · 1950–1950 on record
According to Montana fish & wildlife agency, Assure Lake was last stocked July 24, 1950 with Cutthroat Trout. Assure Lake has 1 stocking record on file, spanning 1950–1950, with about 6,360 fish stocked over that period.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Assure 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 Assure 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 Assure Lake was last stocked July 24, 1950, 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 Assure 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.
Recommended Tackle for Assure 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.
As an Amazon Associate, StockedWaters earns from qualifying purchases at no additional cost to you. Recommendations are chosen for hatchery-conditioned fish behavior and ethical rigging. We may receive a referral commission if you buy through these links. Read our editorial policy & standards.
Nearby stocked waters
Other stocked waters near Assure Lake, freshest activity first.
West Rosebud Lake
1 mi3 species · 201 records
Last stocked June 2026
Emerald Lake
1 mi3 species · 234 records
Last stocked June 2026
East Rosebud Lake
5 mi3 species · 168 records
Last stocked June 2025
West Fishtail Creek Lake 40
5 mi1 species · 2 records
Last stocked September 2024
Princess Lake
5 mi1 species · 3 records
Last stocked August 1997
West Fishtail Creek Lake 41A
5 mi1 species · 11 records
Last stocked September 1992
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 24, 1950 | Cutthroat Trout | 6,360 | 99" | Montana fish & wildlife agency |
Frequently asked
When was Assure Lake last stocked?
According to Montana fish & wildlife agency, Assure Lake was last stocked July 24, 1950 with Cutthroat Trout.
What fish species are stocked in Assure Lake?
Assure Lake is stocked with Cutthroat Trout.
How often is Assure Lake stocked?
Assure Lake is stocked intermittently — 1 recorded stockings between 1950 and 1950.
How many fish have been stocked in Assure Lake?
About 6,360 fish have been stocked in Assure Lake across 1 recorded events since 1950, per Montana fish & wildlife agency.
What size are the fish stocked in Assure Lake?
Fish stocked in Assure Lake average about 99.0 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Assure 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 Assure Lake?
Freshly stocked trout in Assure 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.