Cadastral Property Map of Uruara Colonization Site, Brazil

LBA-ECO LC-24 contains a digitized shapefile of the original land parcel layout for the Uruara colonization site in Pará, Brazil. The geometry, designed by the Colonization and Agrarian Reform Institute (INCRA), consists mostly of 100-hectare lots (400 x 2500m and 500 x 2000m) and larger 'glebas' up to 3,000 hectares arranged along the Trans-Amazon Highway. This paper map was digitized from a South American 1969 datum source and projected to UTM Zone 22 South (WGS84) to match Landsat imagery.

Use Cases

• Analyzing deforestation patterns based on original property boundaries and sizes.
• Studying the spatial design of colonization settlements relative to infrastructure like the Trans-Amazon Highway.
• Georeferencing historical land tenure data for change detection over time.
• Modeling habitat fragmentation using the cadastral network of small, narrow rectangles.

Strengths

• Provides specific, quantified parcel dimensions (100 hectares, 400x2500m, 500x2000m) and size ranges for larger holdings (up to 3,000 hectares).
• Cross-platform presence (Data.gov and NASA Earthdata) indicates recognized importance for land-use science.
• Explicit documentation of georeferencing process from paper map to UTM WGS84 projection.

Limitations

• Critical metadata conflicts exist: 'last updated' dates are 2026-04-10 on Data.gov and 1975-01-01 on NASA Earthdata, creating uncertainty about provenance timing.
• Column names and row counts are unknown, limiting understanding of attribute data within the shapefile.
• License is ambiguously listed as 'other-license-specified' without details.

Provenance

Source

Instituto de Colonizacao e Reforma Agraria (INCRA), Brazil

Collection Method

Digitized from a paper map using an ESRI ArcInfo 8.1 digitizing table.

Time Range

ca. 1975

Freshness

2026-04-10 01:33:14.525263

Geography

Uruara colonization site, Pará, Brazil