Photograph of map "Federal Land Grants for the Construction of Railroads and Wagon Roads 1823-1871" delineating areas of unfortified Federal land grants for railroads and wagon roads, and areas with fortified Federal land grants for railroads, creating patterns across the United States J B Jackson noted on the slide; "Note the wagon road tracks"
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UNM CSWR J.B. Jackson Pictorial Materials from various sources
