Stone Mill is known for it’s amazing aid stations. Each station has amazing volunteers, different food items, plus water and Gatorade.

Notes about the aid station locations: the GPS coordinates are close but not perfect. You’ll need to look for the trail crossing. This is especially true on 118 Germantown Road.

355 AS – Mile 4 and 46  39.167285,-77.229338

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Riffle Ford AS – Mile 11.7 and 42  39.133356,-77.268047

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Rte 28 East (Tunnel) FULL AS – Mile 15  39.106703,-77.234488

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Quince Orchard on Muddy Branch AS
(NO CARS!) – Mile 17.4  39.091966,-77.247448

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Pennyfield Lock FULL AS – Mile 24.3  39.056617,-77.293217

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Stone Mill FULL AS – Mile 27.8  39.069163,-77.343342

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Rte 28 West FULL AS – Mile 34.3  39.128196,-77.333166

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118 Germantown Rd (Water Only) –
Mile 37.2  39.128396,-77.296972

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