This primary source comes from the Records of the Bureau of Public Roads.
Full Citation: 30-N-26193; Typical Oklahoma Road Leading into Muskogee; 1920; Maintenance - Oklahoma; Historical Photograph Files, 1896 - 1963; Records of the Bureau of Public Roads, Record Group 30; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/typical-oklahoma-road-muskogee, May 9, 2024]