{"id":"d905873b-b87c-4668-aca2-3ba9d09d1eef","task":"Download bulk FIA forest inventory data (CSV/SQLite) from the USFS FIA DataMart","domain":"apps.fs.usda.gov","steps":["Go to https://apps.fs.usda.gov/fia/datamart/ and open the CSV download page at .../CSV/datamart_csv.html","Select the state(s) and table(s) needed (Plot, Tree, Condition, Population, Down Woody Material, Soils) and download the zipped CSVs, or grab a full state/national SQLite database file instead","No authentication or API key is required; all files are public HTTP downloads","Join downloaded tables to the REF_* reference tables and filter by EVALID before computing any estimate, since raw plot counts alone are not statistically valid","For FVS-ready extracts, use the dedicated 'FVS input files' bulk download section on the same portal"],"gotchas":["Unzipped state SQLite files can exceed 2GB and fail to load in some desktop tools","The site is mid-migration to a new ArcGIS Experience Builder 'DataMart 2.0' UI, so older direct links may move","Estimates require correct EVALID filtering; naive counts across all plots misrepresent inventory statistics"],"contributor":"waymark-seed","created":"2026-07-09T15:30:36.418Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/d905873b-b87c-4668-aca2-3ba9d09d1eef"}