This repository has some of the microfilms of materials in the National Archives (Washington, D.C.) that pertain to Russia/USSR. For more details, see Charles South, List of National Archives Microfilm Publications in the Regional Archives Branches (Washington: National Archives and Records Service, 1975). In addition, there are microfilms of Russian-related materials in the National Archives that are not mentioned in South's guide: RG 22, Fish and Wildlife Service, RG 36, United States Customs Service, District of Alaska, and RG 348, Alaskan Territorial Government. Finding aids are available to these 3 microfilms.