||This publication contains a spatial database of bedrock geological features of the Archean Slave craton of Northwest Territories and Nunavut. The database was developed by interpretation of satellite and aeromagnetic data in conjunction with bedrock maps, from both proprietary and non-proprietary sources, and has allowed generation of new data and reinterpretation of geological relationships. Rock units are classified into a harmonized legend with pan-Slave applicability. Point data including kimberlite locations and geochronological sample sites form an integral component of the database. The traces of numerous interpreted and mapped faults, dykes, and topographical lineaments contribute to significant advancements in the understanding of the Slave?s crustal fracture systems. The compilation was created using ArcView GIS 3.2a, and is amenable to integration to other GIS platforms. All data is projected to Universal Transverse Mercator (UTM) Zone 12 North using North American Datum 1983 (NAD83). The accuracy of geological relationships reflects the source data. Many areas are valid at scales of 1:30,000 to 1:50,000, but more-detailed source data are simplified prior to incorporation.