Mt Henry Lake Fish Stocking
Montana · 1938–2014 on record
According to Montana fish & wildlife agency, Mt Henry Lake was last stocked August 26, 2014 with Rainbow Trout. Mt Henry Lake has 8 stocking records on file, spanning 1938–2014, with about 33,869 fish stocked over that period.
When Mt Henry Lake is stocked
Angler's Field Guide
Fishing Tips & Stocking Guide for Mt Henry 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 Mt Henry 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 Mt Henry Lake was last stocked August 26, 2014, 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 Mt Henry 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.
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.
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 Mt Henry 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 Mt Henry Lake, freshest activity first.
Middle Fish Lake
3 mi1 species · 24 records
Last stocked August 2024
South Fish Lake
3 mi1 species · 23 records
Last stocked August 2024
North Fish Lake
3 mi2 species · 32 records
Last stocked August 2024
Hoskins Lake
6 mi2 species · 55 records
Last stocked August 2024
Vinal Lake
7 mi1 species · 69 records
Last stocked August 2024
Boulder Lake 1
5 mi1 species · 4 records
Last stocked August 2012
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 26, 2014 | Rainbow Trout | 340 | 1.7" | Montana fish & wildlife agency |
| August 26, 2014 | Rainbow Trout | 612 | 1.54" | Montana fish & wildlife agency |
| October 21, 2013 | Rainbow Trout | 968 | 2.29" | Montana fish & wildlife agency |
| August 22, 1987 | Cutthroat Trout | 2,024 | 1.8" | Montana fish & wildlife agency |
| August 14, 1983 | Cutthroat Trout | 2,000 | 1" | Montana fish & wildlife agency |
| August 14, 1978 | Cutthroat Trout | 4,000 | 1" | Montana fish & wildlife agency |
| August 25, 1971 | Cutthroat Trout | 2,925 | 1" | Montana fish & wildlife agency |
| August 29, 1938 | Cutthroat Trout | 21,000 | 0 | Montana fish & wildlife agency |
Frequently asked
When was Mt Henry Lake last stocked?
According to Montana fish & wildlife agency, Mt Henry Lake was last stocked August 26, 2014 with Rainbow Trout.
What fish species are stocked in Mt Henry Lake?
Mt Henry Lake is stocked with Rainbow Trout and Cutthroat Trout.
How often is Mt Henry Lake stocked?
Mt Henry Lake is stocked intermittently — 8 recorded stockings between 1938 and 2014.
How many fish have been stocked in Mt Henry Lake?
About 33,869 fish have been stocked in Mt Henry Lake across 8 recorded events since 1938, per Montana fish & wildlife agency.
What size are the fish stocked in Mt Henry Lake?
Fish stocked in Mt Henry Lake average about 1.5 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Mt Henry 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 Mt Henry Lake?
Freshly stocked trout in Mt Henry 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.