3 places in California. Each marker is a named area, not a location: the ring around it is that place’s own approved generalization radius, drawn to scale.
9° of latitude, one-degree graticule. Coastline and county lines: Natural Earth 1:10m, public domain. Served from this site — no tile request leaves it.
Markers are rounded to two decimal places — roughly 1.1 km — before they leave the archive, and no finer coordinate exists in this site’s data to be found. Rounding is applied once per place rather than per photograph, because an offset applied per frame is defeated by repetition: with enough samples around one point, the mean converges on the truth.