Swimming Lake Fish Stocking
Montana · 1952–1972 on record
According to Montana fish & wildlife agency, Swimming Lake was last stocked May 10, 1972 with Rainbow Trout. Swimming Lake has 15 stocking records on file, spanning 1952–1972, with about 10,030 fish stocked over that period.
When Swimming Lake is stocked
Swimming Lake is typically stocked in spring, most often in May — 8 stocking events in that peak month.
Angler's Field Guide
Fishing Tips & Stocking Guide for Swimming 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 Swimming 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 Swimming Lake was last stocked May 10, 1972, 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 Swimming 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.
Brook Trout Profile Tips
A favorite of high-country and small-stream anglers; often more willing to strike than brown or rainbow trout in the same water.
Recommended Tackle for Swimming 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 Swimming Lake, freshest activity first.
Round Lake
2 mi4 species · 59 records
Last stocked May 2026
Plummer Lake
1 mi3 species · 4 records
Last stocked September 1971
Sawdust Lake
1 mi3 species · 20 records
Last stocked May 1970
Harbin Lake
0 mi2 species · 14 records
Last stocked May 1968
East Bass Lake
1 mi1 species · 17 records
Last stocked May 1968
Double Lake
1 mi3 species · 21 records
Last stocked April 1966
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 10, 1972 | Rainbow Trout | 504 | 4" | Montana fish & wildlife agency |
| May 18, 1970 | Rainbow Trout | 560 | 3" | Montana fish & wildlife agency |
| May 9, 1968 | Rainbow Trout | 510 | 4" | Montana fish & wildlife agency |
| June 9, 1965 | Rainbow Trout | 347 | 7" | Montana fish & wildlife agency |
| May 17, 1962 | Rainbow Trout | 190 | 6" | Montana fish & wildlife agency |
| May 24, 1961 | Rainbow Trout | 189 | 6" | Montana fish & wildlife agency |
| May 2, 1960 | Rainbow Trout | 1,166 | 6" | Montana fish & wildlife agency |
| June 19, 1959 | Rainbow Trout | 800 | 6" | Montana fish & wildlife agency |
Show 7 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 8, 1958 | Rainbow Trout | 992 | 6" | Montana fish & wildlife agency |
| May 6, 1957 | Rainbow Trout | 999 | 0 | Montana fish & wildlife agency |
| July 16, 1956 | Rainbow Trout | 1,020 | 0 | Montana fish & wildlife agency |
| June 13, 1955 | Rainbow Trout | 1,003 | 0 | Montana fish & wildlife agency |
| June 15, 1954 | Rainbow Trout | 998 | 0 | Montana fish & wildlife agency |
| June 13, 1953 | Brook Trout | 480 | 0 | Montana fish & wildlife agency |
| July 28, 1952 | Rainbow Trout | 272 | 9" | Montana fish & wildlife agency |
Frequently asked
When was Swimming Lake last stocked?
According to Montana fish & wildlife agency, Swimming Lake was last stocked May 10, 1972 with Rainbow Trout.
What fish species are stocked in Swimming Lake?
Swimming Lake is stocked with Rainbow Trout and Brook Trout.
What time of year is Swimming Lake stocked?
Swimming Lake is typically stocked in spring, most often in May.
How often is Swimming Lake stocked?
Swimming Lake is stocked intermittently — 15 recorded stockings between 1952 and 1972.
How many fish have been stocked in Swimming Lake?
About 10,030 fish have been stocked in Swimming Lake across 15 recorded events since 1952, per Montana fish & wildlife agency.
What size are the fish stocked in Swimming Lake?
Fish stocked in Swimming Lake average about 5.7 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Swimming 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 Swimming Lake?
Freshly stocked trout in Swimming 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.