Mason Brook

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Mason Brook flows into Squannacook River , which it joins at N 42° 41′ 18″, W 71° 45′ 17″ at OSM node n8497221639, and there 17 km of total upstream flows in. load it's distributaries

Mason Brook has 2 tributaries.

• (unnamed), which joins it at N 42° 41′ 20″, W 71° 45′ 15″ at OSM node n8497221635, and 2 km of total upstream flows in.
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• Black Fly Brook, which joins it at N 42° 42′ 20″, W 71° 45′ 5″ at OSM node n8497200511, and 2 km of total upstream flows in.
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