That doesn't look like a valid POTA reference.
Find a park
Look up any POTA park by its reference number to see (and add) community field notes: parking, access, boundaries, safety info, amenities, ratings, and photos.
Community field notes for Parks on the Air activators
Look up any POTA park by its reference number to see (and add) community field notes: parking, access, boundaries, safety info, amenities, ratings, and photos.