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Vertical datum at rapid deployment network site on Spring Creek in Harrisburg PA

By Pennsylvania Water Science Center 2021 (approx.)
Photograph of a bridge over a stream and walking path with a yellow-legged GPS instrument, field books, and equipment.
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Detailed Description

USGS scientists establishing NAVD88 vertical datum at a potential Rapid Deployment Network site on Spring Creek in Harrisburg, Pennsylvania. Water level in Spring Creek at this location is not monitored. The stream passes through urban neighborhoods in Harrisburg and surrounding areas. (Victor Cortes, USGS)

Sources/Usage

Public Domain.