River of Change

River of Change (HM2QY)

Location: McLean, VA 22102 Fairfax County
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Country: United States of America
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N 38° 59.753', W 77° 15.2'

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The Potomac River at Great Falls

The Potomac River begins as a small spring near Fairfax Stone, West Virginia. Like a giant funnel it gathers water from Pennsylvania, West Virginia, Maryland, Virginia, and the District of Columbia as it travels 383 miles to the Chesapeake Bay.

When it reaches Great Falls, the river narrows and drops 76 feet into a canyon called Mather Gorge. Changing weather conditions in the river's watershed affect the character of the river at Great Falls.
HM NumberHM2QY
Marker ConditionNo reports yet
Date Added Tuesday, September 16th, 2014 at 9:21pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 304858 N 4318735
Decimal Degrees38.99588333, -77.25333333
Degrees and Decimal MinutesN 38° 59.753', W 77° 15.2'
Degrees, Minutes and Seconds38° 59' 45.18" N, 77° 15' 12.00" W
Driving DirectionsGoogle Maps
Area Code(s)540, 703, 571, 202
Closest Postal AddressAt or near 2601-2699 Old Carriage Rd, McLean VA 22102, US
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