Photo by Abbamouse.
If you’re like GM, you like to browse neighborhood real estate listings. And if you’re even more like him, you’ve come across the following and wondered, what the heck is this about?:

GM has always wondered what exactly “Urban Land-Sassafras-Chillum” means. So finally he did some digging (internet digging, not dirt digging). And it turns out these are classifications of soil.
GM was of the opinion that soil types boiled down to basic characteristics, like say “sandy” or “rocky” or maybe even “loamy”, whatever that meant. But apparently soils are classified by a system of incredible detail and particularity. According to this 1976 survey of the soils of DC, our little patch of land is composed of dozens of different soil types, with names such as “Brandywine gravelly loam” or “Beltsville-urban land complex”. Continue reading →
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