Historical maps became layered cultural evidence.

Vintage maps of a French commune were digitized, harmonized and georeferenced so researchers could compare land ownership, taxation, crop patterns and spatial change across centuries.

The challenge

The source maps came from different centuries, scales and physical conditions, making direct comparison unreliable.

Researchers needed parcel, agriculture, river and forest features extracted precisely enough for temporal analysis.

The approach

SBL digitized map features, aligned them to modern spatial references and harmonized the layers for comparative analysis.

The team used GIS controls to manage scale differences, degradation and feature-density issues across the source material.

The result

The university gained a structured spatial database for studying how land, ownership and cultural patterns changed over time.

• Historical land parcels and environmental features became queryable GIS layers.
• Maps from different eras could be overlaid for comparative research.
• The project preserved context while improving analytical access.
• Researchers gained a stronger data foundation for anthropological interpretation.