Historical Watershed Boundary Maps from Alberta Forest Inventory

Alberta's Historical Watershed Boundary Maps consist of scanned color and black-and-white maps delineated for the Phase 3 Forest Inventory program. The maps are provided in PDF and TIFF formats sorted by National Topographic System blocks within ZIP files, but approximately one-third of the series is currently missing. This series is not updated and is not available as geo-referenced GIS-ready data.

Use Cases

• Analyze historical watershed delineations based on scanned map images
• Study changes in forest inventory boundaries over time based on the range of publication dates
• Create reference materials for historical land management based on the 1:50,000 and 1:250,000 scale maps

Strengths

• Maps are available in both color and black-and-white scanned versions
• Files are organized by the National Topographic System (NTS) 1:50,000 and 1:250,000 blocks

Limitations

• Approximately one-third of the series is missing
• Data is not available as geo-referenced rectified images or GIS-ready data
• Description metadata is limited; actual data quality requires manual inspection after download

Provenance

Source

Government of Alberta

Collection Method

Scanned from printed color maps delineated as part of the Phase 3 Forest Inventory program

Freshness

Last updated 2026-04-17 14:49:41.185486; freshness should be verified

Geography

Alberta