Compressed file sedPbZn_SourceData_gdb.zip contains the GIS datasets and Python scripts used to calculate the estimated potential and certainty that sediment-hosted Pb-Zn (lead-zinc) deposits might be present in an area in Alaska. The statewide datasets include: Alaska Geochemical Database (AGDB3), Alaska Resource Data File (ARDF), lithology layers created from Alaska Geologic Map (SIM3340), and 12-digit HUCs, subwatersheds from the National Watershed Boundary dataset. FGDC metadata for all datasets are included. In addition, files are included for the user to modify the parameters of the analysis. These include two Python scripts, 1) used to score ARDF sites for sediment-hosted Pb-Zn potential, and 2) to evaluate each 12-digit HUC for sediment-hosted Pb-Zn potential and certainty based on queries on AGDB3, ARDF, and lithology. An mxd file and cartography layers are included for viewing the data selections in ArcGIS. Other supporting documents are included. Compressed file sedPbZn_SourceData_shape.zip contains shapefiles versions of all the geodatabase feature classes which are derivatives of published datasets ARDF and SIM3340, and CSV files of the ARDF keyword files. Other supporting documents included are: FGDC metadata for each data source, a pdf showing the query parameters for the analysis, and a README file.