Curious if anyone is aware of a data source that provides a polygon for all U.S. state parks? There are sources for each individual state but interested if a source is already doing the aggregation work. Any insight is helpful!
The protected areas database could be a place to start https://www.usgs.gov/core-science-systems/science-analytics-and-synthesis/gap/science/pad-us-data-download?qt-science_center_objects=0#qt-science_center_objects It would require filtering but state parks should be in there