Parsing USDA Soil Survey Data: Building MySoilType.com

Parsing USDA Soil Survey Data: Building MySoilType.com I've always been fascinated by soil—not in a "I want to be a geologist" way, but in the "why does my neighbor's garden thrive while mine fails?" way. Turns out, the answer is usually in the soil data. The US government has incredibly detailed soil maps for every square foot of the country. I built MySoilType to make that data accessible to regular people. The USDA SSURGO Database The USDA's Soil Survey Geographic Database (SSURGO) is a goldmine: Soil type classifications Water retention capacity Drainage characteristics pH levels Suitable crops and land uses But here's the catch: it's stored as massive GIS shapefiles and text files. Not user-friendly. Step 1: Getting the Data The USDA publishes SSURGO as: Shapefiles (GIS format) for soil polygons CSV files with soil attributes County-by-county downloads My first attempt was downloading all 50 states—400GB+ of data. Not practical for a web app. Instead, I opted for on-demand fetchin