USGS has scheduled planned maintenance to our IT infrastructure, starting Tuesday, June 28, 2022, from 8:00-10:00am Eastern Daylight Time (EDT). During the maintenance period, there will be a short interruption in the availability of the most recent time-series data. Any backlog will be made available following conclusion of the scheduled maintenance.
USGS 01480470 Rock Run at Rock Run near Coatesville, PA
Latitude 39°59'34.75", Longitude 75°49'53.80" NAD83
Chester County, Pennsylvania, Hydrologic Unit 02040205