https://openstreetmap.org/copyright | https://openstreetmap.org |
Copyright OpenStreetMap and contributors, under an open license |
https://openstreetmap.org/copyright | https://openstreetmap.org |
Copyright OpenStreetMap and contributors, under an open license |
The boundary is defined by the location of the shoreline. Unfortunately, at this location the shoreline is in constant movement. Neither the boundary of the island nor the boundary of the park are correct.
I took a look at available data from the NPS on this and made some major adjustments to the boundaries! Turns out this part isn't even in the National Seashore. It is part of the Chincoteauge complex. The water is not included, so I updated the boundary to be coincident with the edge of the land. Changeset https://www.openstreetmap.org/changeset/94380533