Ramp sampling sites (IMAGE)

Penn State

Ramp sampling sites

Caption

Ramp sampling sites and occurrences added for geographic information system-based analysis across Pennsylvania. Distribution of ramps in the contiguous United States is shown in the inset. 

Credit

Penn State

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

License

CC BY-NC-ND

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