Agricultural field boundaries produced by Trazo models for key geographies in South America for the 2023-2024 planting season. Post-processed.
# Trazo3-era Field Boundaries — Superseded Versions (2025)
> **Superseded — not the recommended data.** For current work use
> [`trazo3-fields`](../../trazo3-fields/). Part of the
> [EAP release](../llms.txt); see the [catalog root](../../catalog.json).
Two superseded Trazo3-era datasets retained for provenance: Bolivia (1,270,024 fields) and Mato Grosso, Brazil (1,451,758 fields). These are the versions the technical note's coverage table reports.
Both regions have since been reprocessed — see [`trazo3-fields`](../../trazo3-fields/) for the current versions, which also carry MapBiomas and Hansen forest-loss attributes these files lack. Bolivia's `area` and `perimeter` were recomputed in South America Albers Equal Area because its source carried only distorted Brazil Polyconic values.
## Files (2)
- `bolivia_2024`
- `brazil_mato_grosso_2024`
## Schema
| Column | Meaning |
|---|---|
| `det_method` | detection method; constant `auto-imagery` |
| `id` | feature id within the file; not stable across models or releases |
| `area` | field area in **hectares** |
| `perimeter` | field perimeter in **metres** |
| `geometry` | MultiPolygon boundary, EPSG:4326 |
Narrower than the released data: no MapBiomas class (`mbmode24`) and no Hansen forest-loss
columns. All files in this collection share this schema, so they glob:
```sql
SELECT count(*) FROM read_parquet('eap-trazo3/*.parquet');
```
## Caveats
Superseded data from late 2025 — prefer [`trazo3-fields`](../../trazo3-fields/) for current
work. Boundaries are model-derived and have not been field-verified. Field counts are not
comparable across models: Trazo1 and Trazo2 fragment fields more finely than Trazo3, so they
report more boundaries over identical ground. Not intended to be used alone to support
deforestation- or conversion-free claims.
## References
- [Technical note (Grupp et al. 2026)](https://www.wri.org/research/field-boundaries-south-america)
- [EAP release overview](../llms.txt)
- [Model card](https://huggingface.co/worldresourcesinstitute/Trazo3)