<prompt> Nyorai kupfuurira kweiyi ndima - Hammond akatora basa rake rokutanga rokuchera somumwe nyanzvi chaiyo yeU.S. Geological Survey muna 1879-1880 muWashington, DC. Akadzokera kuCalifornia muna 1881 kunoshandira Seneta George Hearst, mukuru mukuru wemigodhi uye baba vaWilliam Randolph Hearst. Muna 1882, akatumirwa kunyika ine ruvengo muMexico, pedyo neSonora, kuti ave mukuru mukuru weMinas Nuevas. Apo chinjo  <response>: Hammond akavharira mhuri yake muimba duku ndokudzivisa vapanduki vakanga vachivarwisa. 