reading the signal…
Signals / Object / Mapped places
in Nave, 25·counted·15 all time
Rock occurring naturally rather than manufactured, often appearing as cliffs, boulders, outcrops, or exposed stone.
Counted, not streamed: Natural Rock has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.