Twin Lake, Upper Fish Stocking
Montana · 1985–2008 on record
According to Montana fish & wildlife agency, Twin Lake, Upper was last stocked July 29, 2008 with Arctic Grayling. Twin Lake, Upper has 4 stocking records on file, spanning 1985–2008, with about 2,310 fish stocked over that period.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Twin Lake, Upper
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 Twin Lake, Upper, 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 Twin Lake, Upper was last stocked July 29, 2008, 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.
Recommended Tackle & Presentations
Techniques tailored to the species stocked in Twin Lake, Upper:
Arctic Grayling Profile Tips
A popular dry-fly target in Montana and Utah's high-country waters, prized for its willingness to rise.
Recommended Tackle for Twin Lake, Upper
Field-tested tackle and presentations matched to the species stocked here.
Aluminum Fishing Pliers with Braid Cutters
Safely removes hooks, pinches split-shot sinkers, and cleanly snips braided, mono, and fluorocarbon lines.
Plano Waterproof Utility Tackle Box Tray (3600)
Keeps terminal tackle, weights, and spinners dry and corrosion-free with customizable compartments.
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 Twin Lake, Upper, freshest activity first.
Sunlight Lake
6 mi3 species · 12 records
Last stocked August 2025
Campfire Lake
4 mi1 species · 10 records
Last stocked July 2024
Cottonwood Lake
8 mi1 species · 16 records
Last stocked July 2024
Crazy Lake
3 mi2 species · 11 records
Last stocked July 2022
Smeller Lake
3 mi2 species · 16 records
Last stocked July 2020
Druckmiller Lake
1 mi3 species · 12 records
Last stocked July 2019
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 29, 2008 | Arctic Grayling | 700 | 1" | Montana fish & wildlife agency |
| July 29, 1992 | Arctic Grayling | 680 | 0.9" | Montana fish & wildlife agency |
| September 12, 1991 | Arctic Grayling | 680 | 1.2" | Montana fish & wildlife agency |
| August 5, 1985 | Arctic Grayling | 250 | 2" | Montana fish & wildlife agency |
Frequently asked
When was Twin Lake, Upper last stocked?
According to Montana fish & wildlife agency, Twin Lake, Upper was last stocked July 29, 2008 with Arctic Grayling.
What fish species are stocked in Twin Lake, Upper?
Twin Lake, Upper is stocked with Arctic Grayling.
How often is Twin Lake, Upper stocked?
Twin Lake, Upper is stocked intermittently — 4 recorded stockings between 1985 and 2008.
How many fish have been stocked in Twin Lake, Upper?
About 2,310 fish have been stocked in Twin Lake, Upper across 4 recorded events since 1985, per Montana fish & wildlife agency.
What size are the fish stocked in Twin Lake, Upper?
Fish stocked in Twin Lake, Upper average about 1.3 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Twin Lake, Upper?
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.