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Dartmouth College Grant Water Flow

The US Geological Survey’s gage measures the combined flow of the rivers below Diamond River Gorge in cubic feet per second, or cfs. (A cubic foot of water is about 7.5 gallons.) This is the total amount of water flowing past the gage on an instantaneous basis. The gage also measures the river depth in feet at that point of the river. 


The typical flow for June is between 100 and 250 cfs. The river can sharply with a storm, sometimes from 100 cfs to 1,000 cfs or 2,000 cfs in a matter of hours. 

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