This letter, titled Sacramento, California, Camp no. 1, U.S.G.S. described to his mother the establishment of the survey party's first camp. A second letter is torn in half with no date and no addressee. It was most likely sent to Harriet Ridgway, as the contents mention the word mother. The letter was postmarked by Ridgway's hand, from Carson City, Nevada and includes several hand drawn bird stamps