Where is Prettyboy Reservoir?

Prettyboy Reservoir is a lake in Baltimore County, Maryland. Its water-quality measurements are published by MDE and shown on this page as reported.

Are there boat ramps on Prettyboy Reservoir?

Prettyboy Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Prettyboy Reservoir. Public access is listed as yes.

Can I fish at Prettyboy Reservoir?

Prettyboy Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Maryland's fish and wildlife agency, so check its current regulations before you go.

Prettyboy Reservoir

Baltimore County, Maryland1,508 acresView map Directions

No nutrient or algae sampling on record from MDE for this lake.

Area

1,508 acres

Surface area

Shoreline

45.1 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)
Public access

See the measurements Directions Where to stay

Prettyboy Reservoir in Baltimore County, Maryland has water-quality measurements published by MDE, shown here as reported. Surface area: 1508 acres.

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Prettyboy Reservoir is a 1,508-acre lake in Baltimore County, Maryland. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

What Prettyboy Reservoir is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Big water1,508 acres

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Prettyboy Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Prettyboy Reservoir is safe to swim in today is a call for the Maryland Department of the Environment and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Prettyboy Reservoir

These are the measurements MDE publishes for Prettyboy Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Prettyboy Reservoir

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

1,508 acres

Shoreline

45.1 mi

Public access

Yes

Listed by MDE

No bathymetric survey has been published for Prettyboy Reservoir, so its depth is not documented here.

Recreation & Access

Boat Landings

Yes

Public Access

Prettyboy ReservoirPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Prettyboy Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Prettyboy Reservoir in Baltimore County, Maryland — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Prettyboy Reservoir

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Fishing Prettyboy Reservoir

→ Prettyboy Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Prettyboy Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MD-021308060313-Prettyboy_Reservoir · Official waterbody report

Nearby Lakes in Baltimore County

Loch Raven Reservoir15.3 miView →Lake Roland—View →Lake Ashburton—View →Druid Lake—View →Lake Montebello—View →

Frequently asked questions about Prettyboy Reservoir

Where is Prettyboy Reservoir?: Prettyboy Reservoir is a lake in Baltimore County, Maryland. Its water-quality measurements are published by MDE and shown on this page as reported.
What is the water quality of Prettyboy Reservoir?: Prettyboy Reservoir in Baltimore County, Maryland has water-quality measurements published by MDE, shown here as reported. Surface area: 1508 acres.
Is Prettyboy Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Prettyboy Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Are there boat ramps on Prettyboy Reservoir?: Prettyboy Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Prettyboy Reservoir. Public access is listed as yes.
Can I fish at Prettyboy Reservoir?: Prettyboy Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Maryland's fish and wildlife agency, so check its current regulations before you go.