Natural Earth: 1:110m land (ne_110m_land), version 5.1.2
Source: https://github.com/nvkelso/natural-earth-vector/blob/v5.1.2/geojson/ne_110m_land.geojson
SHA-256 of the source file: 9e0729ee253ca7d7a5c4ae9395fb1902264c5377c52e224d13dd85010e2835d9
Wayseer stores these outlines simplified, cut at the map's edges, as internal/geo/land.bin.

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