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Fishing Green River (Mammoth Cave): what the data says
Greensburg to Munfordville. clear-water floats for smallmouth and Kentucky's native muskie. The river tops out around 15 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Smallmouth Bass fishing at Green River (Mammoth Cave)
Spring smallmouth bass on Green River (Mammoth Cave) hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 5 to 15 ft, and winter fish settle into 5 to 15 ft. If you only fish one area, make it Greensburg riffles: a rock pile around 4 ft that scores prime in spring. Best bite is early morning and the evening. A drop shot (goby/minnow) or a ned rig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 5 to 15 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 5 to 15 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 5 to 15 ft | midday | Blade bait, Hair jig |
Muskellunge fishing at Green River (Mammoth Cave)
In spring, muskellunge run shallow here, mostly 3 to 12 ft. They move out to 5 to 15 ft in summer and finish the year down in 5 to 15 ft. If you only fish one area, make it Inside bend (mile 41.9): a point around 11 ft that scores prime in summer. Best bite is the evening and early morning. Summer baits: a double-10 bucktail or a topwater (walk-the-dog / creeper) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Smaller bucktail (#8 blades), 6" glide bait |
| Summer | 5 to 15 ft | dusk & dawn | Double-10 bucktail, Topwater (walk-the-dog / creeper) |
| Fall | 4 to 15 ft | midday & dusk | Big rubber (Bull Dawg style), 10"+ glide bait |
| Winter | 5 to 15 ft | midday | Large rubber, crawled slow |
Channel Catfish fishing at Green River (Mammoth Cave)
Spring channel catfish on Green River (Mammoth Cave) hold shallow, usually 3 to 12 ft. Summer pushes them deeper, 5 to 15 ft, and winter fish settle into 5 to 15 ft. The spot to know is Outside-bend hole (mile 2.5), a creek channel in about 11 ft of water that rates prime for channel catfish in summer. Best bite is after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 5 to 15 ft | night & dusk | |
| Fall | 5 to 15 ft | dusk | |
| Winter | 5 to 15 ft | midday |
Longnose Gar fishing at Green River (Mammoth Cave)
In spring, longnose gar run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 1 to 12 ft, and winter fish settle into 5 to 15 ft. If you only fish one area, make it Outside-bend hole (mile 2.5): a creek channel around 11 ft that scores prime in fall. In summer the feeding windows fall in midday and the evening. Summer baits: a rope lure or a small white spinner gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday | Rope lure (hookless nylon), Inline spinner (slow) |
| Summer | 1 to 12 ft | midday & dusk | Rope lure, Small white spinner |
| Fall | 4 to 15 ft | midday | Rope lure, Small jerkbait (pause-heavy) |
| Winter | 5 to 15 ft | midday |
Rock Bass fishing at Green River (Mammoth Cave)
Start shallow in spring: rock bass sit in 2 to 10 ft that time of year. By summer they slide out to 4 to 15 ft, and by winter most fish are in 5 to 15 ft. If you only fish one area, make it Greensburg riffles: a rock pile around 4 ft that scores prime in spring. In summer the feeding windows fall in the evening. A ned rig (small) or a marabou jig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | 1/16 oz jig + grub, Small inline spinner |
| Summer | 4 to 15 ft | dusk | Ned rig (small), Marabou jig |
| Fall | 5 to 15 ft | midday | Small tube jig, Inline spinner |
| Winter | 5 to 15 ft | midday | Tungsten jig + plastic, Small spoon + spike |
Notable structure
- Dam tailrace: dam tailrace, around 13 ft
- Green River Dam tailrace: dam tailrace, around 13 ft
- Outside-bend hole (mile 2.5): creek channel, around 11 ft
- Outside-bend hole (mile 20.8): creek channel, around 11 ft
- Outside-bend hole (mile 22.7): creek channel, around 11 ft
- Outside-bend hole (mile 27.0): creek channel, around 11 ft
- Outside-bend hole (mile 29.2): creek channel, around 11 ft
- Outside-bend hole (mile 31.1): creek channel, around 11 ft
- Outside-bend hole (mile 33.6): creek channel, around 11 ft
- Outside-bend hole (mile 35.7): creek channel, around 11 ft
- Outside-bend hole (mile 38.5): creek channel, around 11 ft
- Outside-bend hole (mile 45.4): creek channel, around 11 ft
- Outside-bend hole (mile 51.9): creek channel, around 11 ft
- Outside-bend hole (mile 53.8): creek channel, around 11 ft
Common questions
How deep is Green River (Mammoth Cave)?
Green River (Mammoth Cave) is about 15 ft at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Green River (Mammoth Cave)?
Anglers target smallmouth bass, channel catfish, muskellunge, longnose gar, rock bass on Green River (Mammoth Cave).
Where is the best fishing spot on Green River (Mammoth Cave)?
Greensburg riffles is the top-rated area: a rock pile in about 4 ft of water that rates prime for smallmouth bass in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Green River (Mammoth Cave)?
For smallmouth bass, 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.
Nearby waters
Metcalfe County Lake · Green River Lake · Marion County · Nolin River Lake · Barren River Lake · Mill Creek Lake
See how Green River (Mammoth Cave) stacks up: best smallmouth bass lakes in Kentucky · best channel catfish lakes in Kentucky · best muskellunge lakes in Kentucky · best longnose gar lakes in Kentucky
Browse all Kentucky fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.