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UFFDA
Crop● In map2018–2025 surfaced (8-year window); year picker offers 2008–2025.

USDA NASS Cropland Data Layer (CDL)

Annual per-pixel crop classification (30m), 2008–present. Powers UFFDA's per-field crop history via runtime click join.

What this is

Per-pixel classified crop type for the contiguous US. UFFDA joins the Cropland Data Layer to field boundaries at click time, every year through the public CroplandCROS service (the self-hosted copy that used to serve 2025 is kept as a dormant fallback). The map's year picker offers 2008–2025 — where national coverage is complete; earlier years exist but only for some states, so we don't offer them. The sidebar surfaces an 8-year window (2018–2025) by default; cached per (field, year) in Supabase so re-clicks are instant.

Why we surface it

It's how UFFDA shows 'what was planted on this field over time.' The crop-history grid is one of the highest-signal pieces of context per field — a real working farmer or analyst recognizes a corn-soy rotation in seconds. Runtime click-join keeps us light: no monthly GitHub Actions burn, no nationwide encode pipeline to maintain.

What you can do with it

Shown for commercial use. Personal, research, and nonprofit use is often more permissive — switch the verdict lens on the catalog.

Internal / individual use
Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).
Redistribute the data
Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).
Republish a derivative
Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).
Build into a private product
Public domain. Use it for anything — internal, resale, AI training, closed products. No attribution legally required (crediting the source is still the decent thing to do).

This decoder is a starting point, not legal advice. For commercial deployment, run the actual license terms past someone who reads them for a living.

◆ Schema · Sample · Citation

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