[Ráfaga] #3283: insurance, gpxz

[Rafagas team]

#3283: insurance, gpxz

Tue, 03 Nov 2026 by Raf

* Sanborn Map Company produced detailed, block-by-block maps of all
U.S. cities between 1870 and 1960, which can now be consulted
georeferenced.

https://mapsnap.org/

* GPXZ aims to improve access to high-quality open elevation data,
with a limited free option to access the API.

https://www.gpxz.io/

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Translated by Isaac, Jaume, Jorge, and Wladimir

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