i *love* these maps from a pedagogical pov bc they so strikingly illustrate the idea of deep historical continuity, the interrelation of geography and society, the intersection of the natural and social sciences and the value of interdisciplinary scholarship, how even geology can be political, etc
@bcham I guess Cretaceous sediments have something to do with agriculture which has to do with slavery?
@bcham This one is old, but same sort of thing
@bcham talk about economic geography! Check out William L Garrison late UCBerkeley emeritus.