reading the signal…
Signals / Object / Street-level imagery
in San Diego, CA·counted·32 all time
A group of desert-dwelling tortoises, typically shown with domed shells, sturdy legs, and sandy surroundings.
Counted, not streamed: Desert Tortoises 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.