![A portion of eastern U.S. showing study site boxed area in Virginia.](images/egsc/studyarea2.jpg)
![Click to view detailed NPS map.](images/egsc/1.jpg)
Click on above map to see it in detail (480 kb).
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Refresh to view other animations and
interesting graphics.
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Dr. John W. Jones, Research Geographer
jwjones@usgs.gov
703-648-5543
![Animation of winter and spring photo taken with special fish-eye lens.](images/egsc/animation.gif)
Animation of photographs taken from beneath the canopy during different seasons using a skyward-facing fish-eye lens can be used to measure when leaves come out and how much tree cover exists at specific locations.
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