Pr 109a Reservoir Fish Stocking
Montana · 1980–2000 on record
According to Montana fish & wildlife agency, Pr 109a Reservoir was last stocked April 21, 2000 with Rainbow Trout. Pr 109a Reservoir has 16 stocking records on file, spanning 1980–2000, with about 48,822 fish stocked over that period.
When Pr 109a Reservoir is stocked
Pr 109a Reservoir is typically stocked in spring, most often in April — 11 stocking events in that peak month.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Pr 109a 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 Pr 109a 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 Pr 109a Reservoir was last stocked April 21, 2000, 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 Pr 109a 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.
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 Pr 109a 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.
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 Pr 109a Reservoir, freshest activity first.
Luther Reservoir
19 mi1 species · 26 records
Last stocked May 2009
McNab Reservoir
20 mi1 species · 1 records
Last stocked September 2006
Helen Reservoir
12 mi1 species · 2 records
Last stocked August 1994
Yeska Reservoir
13 mi1 species · 1 records
Last stocked September 1979
Finale Reservoir
13 mi1 species · 1 records
Last stocked September 1978
Drabbels Reservoir
18 mi4 species · 14 records
Last stocked June 1977
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| April 21, 2000 | Rainbow Trout | 2,039 | 3.3" | Montana fish & wildlife agency |
| April 26, 1999 | Rainbow Trout | 2,115 | 3.8" | Montana fish & wildlife agency |
| April 30, 1998 | Rainbow Trout | 2,986 | 3.1" | Montana fish & wildlife agency |
| April 23, 1997 | Rainbow Trout | 3,009 | 3" | Montana fish & wildlife agency |
| April 23, 1996 | Rainbow Trout | 3,300 | 2.7" | Montana fish & wildlife agency |
| April 12, 1994 | Rainbow Trout | 3,059 | 3.1" | Montana fish & wildlife agency |
| April 9, 1991 | Rainbow Trout | 3,030 | 3.2" | Montana fish & wildlife agency |
| April 18, 1990 | Rainbow Trout | 2,484 | 3.5" | Montana fish & wildlife agency |
Show 8 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| April 20, 1989 | Rainbow Trout | 3,996 | 3.5" | Montana fish & wildlife agency |
| April 7, 1988 | Rainbow Trout | 4,032 | 3.4" | Montana fish & wildlife agency |
| April 15, 1987 | Rainbow Trout | 4,020 | 3.3" | Montana fish & wildlife agency |
| June 2, 1986 | Rainbow Trout | 3,060 | 5" | Montana fish & wildlife agency |
| May 16, 1985 | Rainbow Trout | 2,503 | 4" | Montana fish & wildlife agency |
| May 14, 1984 | Rainbow Trout | 2,505 | 4" | Montana fish & wildlife agency |
| June 14, 1982 | Rainbow Trout | 3,108 | 4" | Montana fish & wildlife agency |
| May 8, 1980 | Rainbow Trout | 3,576 | 5" | Montana fish & wildlife agency |
Frequently asked
When was Pr 109a Reservoir last stocked?
According to Montana fish & wildlife agency, Pr 109a Reservoir was last stocked April 21, 2000 with Rainbow Trout.
What fish species are stocked in Pr 109a Reservoir?
Pr 109a Reservoir is stocked with Rainbow Trout.
What time of year is Pr 109a Reservoir stocked?
Pr 109a Reservoir is typically stocked in spring, most often in April.
How often is Pr 109a Reservoir stocked?
Pr 109a Reservoir is stocked intermittently — 16 recorded stockings between 1980 and 2000.
How many fish have been stocked in Pr 109a Reservoir?
About 48,822 fish have been stocked in Pr 109a Reservoir across 16 recorded events since 1980, per Montana fish & wildlife agency.
What size are the fish stocked in Pr 109a Reservoir?
Fish stocked in Pr 109a Reservoir average about 3.6 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Pr 109a 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 Pr 109a Reservoir?
Freshly stocked trout in Pr 109a 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.