Click a county dot to open that county, then click the exact part you want. Click the map again whenever you want to move the circle.
Respect the place. Some locations are on or beside private property. Ask before entering, close gates, leave no trace and respect homes, farms, livestock and local people.
Picture warning. This is a very large living archive and some pictures may show a nearby place or the wrong place. Use them as a clue, not proof, and report a wrong picture from the full record.
Distance from the centre of the circle