Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for largemouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
42-acre lake near Boonsboro. The lake tops out around 28 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Species by species, here's what the data says the year looks like.
Shoreline on the chart totals 1.1 miles. The shoreline is moderately structured (index 1.5) — enough points and pockets to pattern. Roughly 47% of the water is 15 ft or less as modeled, the band where the food chain lives. End to end it runs roughly 0.4 mi, about 0.2 mi across. The water lies in Washington County. The nearest mapped water is Monocacy River, 16 mi to the east.
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 8 to 28 ft. Top water on the chart: Shallow bay flat, a weed flat in the 3 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 (3 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Shoreline break (13 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (3 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 8 to 28 ft | midday | Shoreline break (13 ft) | Blade bait, Jigging spoon |
In spring, bluegill run shallow here, mostly 1 to 6 ft. Summer pushes them deeper, 4 to 15 ft, and winter fish settle into 10 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring bluegill. Time it for early morning and the evening. You won't need more than a small sponge spider (fly) or a micro tube jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (3 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shoreline break (13 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Deep basin (24 ft) | Tungsten ice jig + plastic, Tiny 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 8 to 28 ft. The spot to know is Deep basin, a deep basin in about 24 ft of water that rates prime for crappie in winter. 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 (3 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Shoreline break (13 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Shoreline break (13 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 8 to 28 ft | midday | Deep basin (24 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
The spring pattern is a shallow one: channel catfish in 3 to 12 ft. As the season builds they drop to 8 to 25 ft, wintering in 8 to 28 ft. Top water on the chart: Deep basin, a deep basin in the 24 ft range, prime in winter. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (3 ft) | |
| Summer | 8 to 25 ft | night & dusk | Deep basin (24 ft) | |
| Fall | 8 to 28 ft | dusk | Deep basin (24 ft) | |
| Winter | 8 to 28 ft | midday | Deep basin (24 ft) |
Spring puts rainbow trout in skinny water — 5 to 20 ft is the zone. Warm water sends them out to 7 to 28 ft; cold water stacks them in 6 to 28 ft. Shoreline break is the standout, a drop-off at roughly 13 ft, rated prime for winter rainbow trout. Plan around early morning and the evening in the warm months. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Shoreline break (13 ft) | Inline spinner (silver), Small spoon |
| Summer | 7 to 28 ft | dawn & dusk | Shoreline break (13 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 8 to 28 ft | dawn & dusk | Shoreline break (13 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 6 to 28 ft | dawn | Shoreline break (13 ft) | Jigging spoon, Tube jig (white) |
The chart marks 5 structure features on Greenbrier Lake; the deepest is Deep basin at about 24 ft.
Season dates, license requirements, and size and bag limits for Maryland waters are set by the Maryland DNR — and special regulations can apply to Greenbrier Lake specifically, so confirm the current rules before you fish.
Check the official Maryland fishing regulations →
Greenbrier Lake is about 28 ft (9 m) deep 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.
Anglers target largemouth bass, bluegill, crappie, channel catfish, rainbow trout on Greenbrier Lake.
Shallow bay flat is the top-rated area: a weed flat in about 3 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 Greenbrier Lake 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.
Monocacy River 16 mi · Potomac River (Upper) 22 mi, MD/WV · Sleepy Creek Lake 29 mi, WV · Little Seneca Lake 29 mi · Clopper Lake 34 mi · Piney Run Lake 35 mi · Liberty Reservoir 39 mi · Lake Marburg 42 mi, PA · Shenandoah River 42 mi, VA · Lake Frederick 44 mi, VA · T. Howard Duckett Reservoir 47 mi · Prettyboy Reservoir 47 mi
See how Greenbrier Lake stacks up: best largemouth bass lakes in Maryland · best crappie lakes in Maryland · best bluegill lakes in Maryland · best channel catfish lakes in Maryland
Browse all Maryland fishing maps or see every water on DepthScout. 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.