The formations a photograph may be shown of

What this page is

This archive is a catalogue, not a photographic library. Of its 7,551 formations, 2,406 have a photograph that may be shown here and 5,145 do not — most of them are one drawn diagram, a date and a place. A gallery of all 7,551 would therefore be 68 per cent drawings, so this page is the photographed ones and says so in its title.

Of those 5,145, 5,144 have no photograph at all. The other one is held back a picture at a time rather than a site at a time: the only photographs the archive holds of it are somebody else's work, and nobody has given this archive permission to republish them.

Every photograph here belongs to the photographer credited beside it, and is shown for non-commercial research and reference with a link to the page it was published on. This build draws on every source in the archive.