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22-acre reservoir in Cleveland County, Oklahoma. The lake tops out around 20 ft. The depth chart comes from Oklahoma Water Resources Board bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The season-by-season read for each species follows, from the map's own numbers.
Dahlgren Lake maps at 22 acres behind 1 miles of shoreline. With a 1.5 development index there's bank structure worth casting at, in moderation. Littoral water — the productive band under ~15 ft — makes up 78% of this chart. Call it 0.3 mi long by 0.2 mi wide at the broadest reach. It sits in Cleveland County. Lake Thunderbird sits 13 mi north — the closest neighbouring chart.
When the water first warms, bluegill slide up into 1 to 6 ft. By summer they slide out to 4 to 15 ft, and by winter most fish are in 6 to 20 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 6 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Keep a small sponge spider (fly) or a micro tube jig rigged through the warm months.
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 | 1 to 6 ft | midday & dusk | Shallow bay flat (6 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (6 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (6 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 20 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (20 ft) | Tiny spoon |
When the water first warms, channel catfish slide up into 3 to 12 ft. Summer is a 6 to 20 ft game here, winter a 6 to 20 ft one. Start at Deep basin. It's a deep basin holding about 20 ft of water and rates prime come winter. The feeding windows run after dark and the evening.
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 12 ft | dusk | Shallow bay flat (6 ft) | |
| Summer | 6 to 20 ft chart-limited; documented 8 to 25 ft | night & dusk | Deep basin (20 ft) | |
| Fall | 6 to 20 ft chart-limited; documented 10 to 30 ft | dusk | Deep basin (20 ft) | |
| Winter | 6 to 20 ft chart-limited; documented 20 to 40 ft | midday | Deep basin (20 ft) |
When the water first warms, largemouth bass slide up into 2 to 10 ft. Summer is an 8 to 20 ft game here, winter a 6 to 20 ft one. Start at Shallow bay flat. It's a weed flat holding about 6 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a texas-rigged 10" worm or a deep-diving crankbait rigged through the warm months.
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 (6 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (15 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (8 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 6 to 20 ft chart-limited; documented 15 to 35 ft | midday | Break off the point (15 ft) | Blade bait, Jigging spoon |
Early season redear sunfish use the shallows, holding in 2 to 10 ft. Summer is a 4 to 18 ft game here, winter a 6 to 20 ft one. The chart's best answer is Shallow bay flat — weed flat, 6 ft, prime for spring. Best bite is early morning and the evening. Tie on a micro jig or a small soft-plastic nymph 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 | midday & dusk | Shallow bay flat (6 ft) | Micro jig dragged near bottom, Tiny beetle-spin |
| Summer | 4 to 18 ft | dawn & dusk | Shallow bay flat (6 ft) | Micro jig, Small soft-plastic nymph |
| Fall | 6 to 20 ft chart-limited; documented 7 to 24 ft | midday | Break off the point (15 ft) | Tiny jig tipped with worm, Micro spoon |
| Winter | 6 to 20 ft chart-limited; documented 10 to 30 ft | midday | Deep basin (20 ft) | Tiny jigging spoon |
Early season green sunfish use the shallows, holding in 1 to 8 ft. Expect a summer slide to 2 to 12 ft, then a winter hold in 6 to 20 ft. Put Shallow bay flat first on the milk run — a weed flat near 6 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a micro jig or a small grub 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 | 1 to 8 ft | midday | Shallow bay flat (6 ft) | Micro jig, Tiny beetle-spin |
| Summer | 2 to 12 ft | dawn & dusk | Shallow bay flat (6 ft) | Micro jig, Small grub |
| Fall | 4 to 16 ft | midday | Break off the point (15 ft) | Small jig, Micro crankbait |
| Winter | 6 to 20 ft chart-limited; documented 8 to 22 ft | midday | Deep basin (20 ft) | Tiny hair jig, Micro spoon |
4 pieces of structure are mapped here — Deep basin, around 20 ft, is the deepest of them.
Season dates, license requirements, and size and bag limits for Oklahoma waters are set by the Oklahoma Department of Wildlife Conservation — and special regulations can apply to Dahlgren Lake specifically, so confirm the current rules before you fish.
Check the official Oklahoma fishing regulations →
Dahlgren Lake is about 20 ft (6 m) deep at its deepest point. The depth chart comes from Oklahoma Water Resources Board bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target bluegill, channel catfish, largemouth bass, redear sunfish, green sunfish on Dahlgren Lake.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for bluegill in spring. Scroll up to the map for the complete spot list by species and season.
For bluegill, 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 Dahlgren Lake is regulated by the Oklahoma Department of Wildlife Conservation. Check the official Oklahoma regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lake Thunderbird 13 mi · Shawnee Twin Lakes #1 20 mi · Shawnee Twin Lakes #2 22 mi · Lake Stanley Draper 22 mi · R.C. Longmire Lake 22 mi · Meeker Lake 33 mi · Wewoka Lake 40 mi · Lake Overholser 41 mi · Arcadia Lake 41 mi · Lake Hefner 41 mi · Lake 'O' the Arbuckles 43 mi · Mountain Lake 48 mi
See how Dahlgren Lake stacks up: best largemouth bass lakes in Oklahoma · best bluegill lakes in Oklahoma · best channel catfish lakes in Oklahoma
Browse all Oklahoma fishing maps. See every water on DepthScout. Depth data: Oklahoma Water Resources Board, Lake bathymetry. 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.