MD · Shenandoah basin · HUC 02070011

Saint Marys River

Running high for this time of year

90th percentile
streamflow volume for this time of year
1 gauge reporting
24sq mi drains to the lowest gauge
23.4mi long, head to mouth

upstream ↑

10 mi 20 Potomac River 14,520 sq mi SQ MISQ MI 3.8 Jarboesville Run 10.7 Western Branch Saint Marys River 2.5 Johns Creek 0.8 Lennie Creek 1.7 Warehouse Run 9.6 Eastern Branch 1.3 Craney Creek 4.2 Fisherman Creek 8.3 Saint Inigoes Creek 4.2 Carthagena Creek Wildewood California Callaway St. George Island Great Mills

downstream ↓

flow gauge selected, chart below water quality site town on the river

Great Mills

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24 sq mi drains to here +624% vs. 7 days ago

The uppermost gauge on this reach. Flow here is very high for early September.

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