Creek MD PA

Long Arm Creek - Long Arm Reservoir

Maryland • 39.7512, -76.9907

Hydrography profile Updated Dec 27, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

5 mi

8 km

Elevation

860′ → 594′

266 ft drop

Stream Order

Stream

Slope

1.06%

55.9 ft/mi

Drainage

6 mi²

15 km²

Avg Flow

8 cfs

0.9 mph velocity

Path to Mouth

323 mi

521 km to ocean

Classification

Headwater

Source Stream

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

Loading the interactive map…

Data from USGS & NOAA for informational purposes only. Read source and safety notes

Access Sites on Long Arm Creek - Long Arm Reservoir

There are 1 boat ramps, launches, and public access points on Long Arm Creek - Long Arm Reservoir.