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Rating depth structure for largemouth bass.
Recent public catches load as you reach this section.
14-acre reservoir in Judith Basin County, Montana. The lake tops out around 15 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
Kolar Reservoir 2 maps at 14 acres behind 0.6 miles of shoreline. A shoreline index of 1.2 says round and simple: fish relate to depth changes here, not shoreline features. The basin spans about 0.3 mi end to end. Judith Basin County claims this one. Ackley Lake sits 34 mi southeast — the closest neighbouring chart.
Start shallow in spring: cutthroat trout sit in 3 to 15 ft that time of year. They don't go far with the seasons — 4 to 15 ft covers summer, 4 to 15 ft covers winter. The spot to know is Break off the point, a drop-off in about 12 ft of water that rates prime for cutthroat trout in summer. Warm-month bites cluster around early morning and the evening. Throw a trolled spoon (small) or an inline spinner until the fish tell you otherwise.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Main-lake point (6 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 4 to 15 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Break off the point (12 ft) | Trolled spoon (small), Inline spinner |
| Fall | 3 to 15 ft chart-limited; documented 5 to 25 ft | dawn & dusk | Main-lake point (6 ft) | Casting spoon, Inline spinner |
| Winter | 4 to 15 ft chart-limited; documented 10 to 40 ft | dawn | Break off the point (12 ft) | Small jigging spoon, Marabou jig |
Early season largemouth bass use the shallows, holding in 2 to 10 ft. Expect a summer slide to 5 to 15 ft, then a winter hold in 5 to 15 ft. Put Shallow bay flat first on the milk run — a weed flat near 2 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (2 ft) | Spinnerbait, Chatterbait |
| Summer | 5 to 15 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Break off the point (12 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (6 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 5 to 15 ft chart-limited; documented 15 to 35 ft | midday | Break off the point (12 ft) | Blade bait, Jigging spoon |
Come spring, look for rainbow trout tight to the bank in 4 to 15 ft. Through summer count on 4 to 15 ft; the winter hold is 3 to 15 ft. If you only fish one area, make it Break off the point: a drop-off around 12 ft that scores prime in winter. Best bite is early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Main-lake point (6 ft) | Inline spinner (silver), Small spoon |
| Summer | 4 to 15 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (12 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 4 to 15 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Main-lake point (6 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 3 to 15 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (12 ft) | Jigging spoon, Tube jig (white) |
Count 4 structure marks on this chart. The deepest, Deep basin, sits near 15 ft.
Season dates, license requirements, and size and bag limits for Montana waters are set by the Montana Fish, Wildlife & Parks — and special regulations can apply to Kolar Reservoir 2 specifically, so confirm the current rules before you fish.
Check the official Montana fishing regulations →
Kolar Reservoir 2 is about 15 ft (5 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target cutthroat trout, largemouth bass, rainbow trout on Kolar Reservoir 2.
Break off the point is the top-rated area: a drop-off in about 12 ft of water that rates prime for cutthroat trout in summer. Scroll up to the map for the complete spot list by species and season.
For cutthroat trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Kolar Reservoir 2 is regulated by the Montana Fish, Wildlife & Parks. Check the official Montana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Ackley Lake 34 mi · Wadsworth Lake 45 mi · Lake Sutherlin 46 mi · Newlan Reservoir 48 mi · Gollaher Reservoir 53 mi · Crystal Lake (Fergus) 56 mi · Lewis Pond South 57 mi · Hound Creek Reservoir 60 mi · Missouri River 63 mi · Hauser Lake 74 mi · Canyon Ferry Reservoir 75 mi · Lake Helena 79 mi
See how Kolar Reservoir 2 stacks up: best largemouth bass lakes in Montana · best rainbow trout lakes in Montana · best cutthroat trout lakes in Montana
Browse all Montana fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.