Extended Hydrofabric for the Upper Colorado River Basin

The Extended Hydrofabric Data Product provides a standardized, model-ready dataset for water management modeling in the Upper Colorado River Basin (UCRB). It includes spatially integrated 1,318 diversion points, 37 reservoirs, water rights data, and operational time series, all linked to the national reference hydrofabric using persistent comid identifiers. This data product contains: Extended Hydrofabric GeoPackage (*.gpkg) Relational SQLite database containing reservoirs, diversion metadata, water rights, and time series Raw source datasets are not redistributed and must be downloaded separately (link in GitHub README).All Python scripts and workflows used to generate this dataset are openly available on GitHub. Full Documentation: https://github.com/hydroaggie/Extended_hydrofabric/blob/main/Documentation/Documentation.pdf A continuously updated log of identified data inconsistencies is maintained publicly: Known Anomalies Log: https://github.com/hydroaggie/Extended_hydrofabric/tree/main/data_quality Version 1.1 Update (February 2026): Corrected erroneous "SOURCE_COMID" assignments for a subset of reservoir features. Updated the Extended Hydrofabric GeoPackage and relational SQLite database to reflect revised COMID linkages. No structural schema changes were made. No changes to diversion counts, reservoir counts, or database design.