Mason Swamp

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Mason Swamp flows into (unnamed) , which it joins at N 38° 0′ 31″, W 77° 9′ 45″ at OSM node n445470706, and there 42 km of total upstream flows in. load it's distributaries

Mason Swamp has 1 tributaries.

• (unnamed), which joins it at N 38° 1′ 33″, W 77° 8′ 44″ at OSM node n445481114, and 2 km of total upstream flows in.
load it's tributaries