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770-acre reservoir near Laurel. The lake tops out around 106 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, T. Howard Duckett Reservoir runs 672 acres with 30.6 miles of edge. With a shoreline index of 8.4, this water is all arms and coves — edge habitat well beyond its acreage. About 50% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 5.2 mi end to end and 1.5 mi across at its widest. The water lies in Montgomery County. Closest neighbour on DepthScout: Clopper Lake, 18 mi west of here.
The spring pattern is a shallow one: largemouth bass in 2 to 10 ft. As the season builds they drop to 8 to 20 ft, wintering in 15 to 35 ft. Top water on the chart: Shallow bay flat, a weed flat in the 4 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (4 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Back-bay flat (7 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Old creek channel (5 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (25 ft) | Blade bait, Jigging spoon |
Start shallow in spring: crappie sit in 2 to 8 ft that time of year. Summer pushes them deeper, 10 to 25 ft, and winter fish settle into 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates prime for crappie in spring. Warm-month bites cluster around early morning and the evening. Throw a jig trolled/spider-rigged or a small crankbait (trolled) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (4 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (25 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Old creek channel (5 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Break off the point (25 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
T. Howard Duckett Reservoir carries 10 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 78 ft down.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Maryland waters are set by the Maryland DNR — and special regulations can apply to T. Howard Duckett Reservoir specifically, so confirm the current rules before you fish.
Check the official Maryland fishing regulations →
T. Howard Duckett Reservoir is about 106 ft (32 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target largemouth bass, crappie on T. Howard Duckett Reservoir.
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for largemouth bass in spring. Scroll up to the map for the complete spot list by species and season.
For largemouth 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.
Fishing on T. Howard Duckett Reservoir is regulated by the Maryland DNR. Check the official Maryland regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Clopper Lake 18 mi · Piney Run Lake 19 mi · Little Seneca Lake 21 mi · Liberty Reservoir 21 mi · Patapsco River 25 mi · Loch Raven Reservoir 29 mi · Monocacy River 32 mi · Gunpowder Falls 32 mi · Potomac River (Tidal) 33 mi, MD/DC · Occoquan Reservoir 37 mi, VA · Prettyboy Reservoir 37 mi · Lake Marburg 46 mi, PA
See how T. Howard Duckett Reservoir stacks up: best largemouth bass lakes in Maryland · best crappie lakes in Maryland
Browse all Maryland fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.