Gravelly Run

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Gravelly Run flows into Otter Brook , which it joins at N 39° 50′ 39″, W 75° 3′ 13″ at OSM node n1358541762, and there 6 km of total upstream flows in. load it's distributaries

Gravelly Run has 1 tributaries.

• (unnamed), which joins it at N 39° 50′ 42″, W 75° 1′ 46″ at OSM node n1358544729, and 310 m of total upstream flows in.
load it's tributaries