Warren Inc Reservoir Fish Stocking
Montana · 1936–1989 on record
According to Montana fish & wildlife agency, Warren Inc Reservoir was last stocked August 1, 1989 with Largemouth Bass. Warren Inc Reservoir has 19 stocking records on file, spanning 1936–1989, with about 40,638 fish stocked over that period.
When Warren Inc Reservoir is stocked
Warren Inc Reservoir is typically stocked in summer and fall, most often in October — 6 stocking events in that peak month.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Warren Inc Reservoir
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 Warren Inc Reservoir, 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 Warren Inc Reservoir was last stocked August 1, 1989, 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 Warren Inc Reservoir:
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.
Catfish Rigging
Fish a Carolina slip-sinker bottom rig with a 1/2 to 1 oz egg sinker, swivel, and 1/0–3/0 circle hook. Baits such as chicken liver, cut baitfish (shad), nightcrawlers, and stink baits produce best during early morning, dusk, or night in deeper holes.
Bass & Panfish Approach
Target visible structure such as docks, weed lines, and fallen trees. Small 1/32 to 1/16 oz jig heads with soft plastic grubs or live worms under a float work well for crappie and bluegill; soft plastic worms or spinnerbaits work well for bass.
Largemouth Bass Profile Tips
The centerpiece of American bass fishing culture, taken on everything from topwater lures to soft plastics and live bait.
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 Warren Inc Reservoir
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.
Heavy Duty Offset Circle Hooks (1/0–3/0)
Circle hooks naturally turn into the corner of a catfish's jaw as it turns, preventing gut-hooking and improving hookup rates.
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 Warren Inc Reservoir, freshest activity first.
Rocky Ranch Interstate Pond
11 mi1 species · 13 records
Last stocked August 2025
Arapooish Pond
8 mi3 species · 24 records
Last stocked September 2023
Hay Corral Pond
10 mi1 species · 12 records
Last stocked August 2023
Reno Creek Pond
14 mi1 species · 7 records
Last stocked August 2023
Rocky Ranch Hardin Pond
10 mi1 species · 7 records
Last stocked August 1995
Rocky Ranch House Pond
10 mi1 species · 4 records
Last stocked July 1994
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 1, 1989 | Largemouth Bass | 500 | 1.3" | Montana fish & wildlife agency |
| August 30, 1988 | Largemouth Bass | 440 | 2.5" | Montana fish & wildlife agency |
| June 14, 1988 | Largemouth Bass | 2,500 | 0.5" | Montana fish & wildlife agency |
| June 11, 1987 | Largemouth Bass | 10,000 | 0.5" | Montana fish & wildlife agency |
| July 31, 1972 | Largemouth Bass | 500 | 2" | Montana fish & wildlife agency |
| May 20, 1969 | Rainbow Trout | 1,023 | 4" | Montana fish & wildlife agency |
| April 11, 1968 | Rainbow Trout | 2,400 | 3" | Montana fish & wildlife agency |
| October 5, 1966 | Rainbow Trout | 1,650 | 7" | Montana fish & wildlife agency |
Show 11 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| April 17, 1964 | Rainbow Trout | 900 | 4" | Montana fish & wildlife agency |
| September 12, 1962 | Rainbow Trout | 1,200 | 5" | Montana fish & wildlife agency |
| September 4, 1962 | Bluegill | 1,000 | 1" | Montana fish & wildlife agency |
| June 20, 1962 | Largemouth Bass | 600 | 1" | Montana fish & wildlife agency |
| April 21, 1947 | Rainbow Trout | 250 | 5" | Montana fish & wildlife agency |
| September 23, 1942 | Largemouth Bass | 7,200 | 4" | Montana fish & wildlife agency |
| October 29, 1938 | Bluegill | 2,000 | 2" | Montana fish & wildlife agency |
| October 29, 1938 | Bullhead | 875 | 3" | Montana fish & wildlife agency |
| October 29, 1938 | Largemouth Bass | 400 | 5" | Montana fish & wildlife agency |
| October 16, 1936 | Largemouth Bass | 4,800 | 3" | Montana fish & wildlife agency |
| October 16, 1936 | Crappie | 2,400 | 3" | Montana fish & wildlife agency |
Frequently asked
When was Warren Inc Reservoir last stocked?
According to Montana fish & wildlife agency, Warren Inc Reservoir was last stocked August 1, 1989 with Largemouth Bass.
What fish species are stocked in Warren Inc Reservoir?
Warren Inc Reservoir is stocked with Largemouth Bass, Rainbow Trout, Bluegill, Bullhead, and Crappie.
What time of year is Warren Inc Reservoir stocked?
Warren Inc Reservoir is typically stocked in summer and fall, most often in October.
How often is Warren Inc Reservoir stocked?
Warren Inc Reservoir is stocked intermittently — 19 recorded stockings between 1936 and 1989.
How many fish have been stocked in Warren Inc Reservoir?
About 40,638 fish have been stocked in Warren Inc Reservoir across 19 recorded events since 1936, per Montana fish & wildlife agency.
What size are the fish stocked in Warren Inc Reservoir?
Fish stocked in Warren Inc Reservoir average about 3.0 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Warren Inc Reservoir?
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 Warren Inc Reservoir?
Freshly stocked trout in Warren Inc Reservoir 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.