FIRST FLIGHT is a "D" stability mark and might be difficult to determine the leveled high point.
Several other marks in the area are more appropriate for vertical control; Q 168 is a first order leveled benchmark. WILBER is a 2nd order mark located near the entrance to the park.

Datasheet: http://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=DK3518
Photo: photo.JPG

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