The capacity mapping approach can be used to identify existing community resources. As part of this approach, inventories are used to provide information for a capacity map. The authors describe the development of two inventories and a capacity map for public health workforce development. For the first inventory, the authors contacted 754 institutions to determine available public health training resources; 191 institutions reported resources, including 126 directly providing distance learning technologies and courses or modules addressing important competency domains. Distance learning technologies included video conferencing facilities (61%) and satellite download facilities (50%). For the second inventory, the authors obtained information on 129 distance-accessible public health training modules. The workforce development capacity map produced from these two inventories revealed substantial resources available for use by individuals or agencies wishing to improve training in public health competencies.