Indeed it was: mollisols and ultisols were red ... Soils define culture. Throughout history soil has defined human societies perhaps more strongly than any other single environmental variable.

Mollisols: Generally considered grassland soils having a surface layer (approximately 18 cm thick) that is friable, dark in color and with high soil organic carbon content. Munsell chroma ...

What’s in a word? Well, if it’s the word dirt or soil, it turns out, it’s a lot. While most people, myself included, often ...