Find POTA parks by grid square
Every Parks on the Air reference in a Maidenhead square, across all states.
Type a square such as EL87, a field such as FN,
or a full six-character locator. Squares cross state lines, which is why
this looks across every state rather than one at a time.
Browsing rather than searching? Every state has its own page of parks with fees, hours and facilities — start at Park guides.