#3066: grid, megaliths
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MapYourGrid is a free and open source initiative that seeks volunteers to create an open digital twin of the European energy distribution network.
https://mapyourgrid.org/ -
The IGN topographic map of the numerous menhirs and dolmens that, throughout metropolitan France, reveals the distribution of this unique heritage, part of them designated by UNESCO
[FR]
https://www.ign.fr/mag/menhirs-et-dolmens-la-france-des-megalithes-en-carte
Raf