The whole place is classified as "gravelly loam", it's rocks upon rocks in a loam matrix at least ten meters deep. ;D I don't really have topsoil, it's litera

The whole place is classified as "gravelly loam", it's rocks upon rocks in a loam matrix at least ten meters deep. ;D I don't really have topsoil, it's literally just rocks and rocks and more rocks. (I suspect it's the alluvial remains of something like the Great Flood of 1862: https://en.wikipedia.org/wiki/Great_Flood_of_1862 https://en.wikipedia.org/wiki/Great_Flood_of_1862) For moving them I'm making pick-and-place bots (probably simplified delta-bots, but the actual form isn't fixed yet) that will also scan and sort them. The tail wags the dog here, eh? Because I have essentially nothing but rocks I concocted this plan to make use of them. I can also build things like "sand batteries" to store heat. And because the rocks come in all different colors I could make patterns in the walls and floors and roads, etc... > A thousand years from now they'll wonder what it's purpose was. Ha! Right? I should add some weird features just for future archeologists? "We believe the frog eating a banana had religious significance." Embed some titanium spheres in a wall in the shape of the constellation of Pleiades --but as it was millions of years ago? Make the whole thing look like the base of one end of a vast bridge? Or like the foot of a huge statue? The possibilities are endless!