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McKinley Surveyr, top of summitThe team of four climbers has returned from the highest point in North America with new GPS survey data to determine a more precise height of the mountain’s summit. The USGS, along with NOAA’s National Geodetic Survey (NGS), and the University of Alaska Fairbanks (UAF), are the primary partners supporting the survey. The survey party included three mountaineers from CompassData, a subcontractor for Dewberry and a scientist from UAF’s Geophysical Institute. Using modern GPS survey equipment and techniques, the partners will be able to report the summit elevation with a much higher level of accuracy and confidence than has been possible in the past. It is anticipated the newly surveyed elevation will be announced in late August.

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