The Army Surveys of Gold Rush California
Subjects
United states, army, officersFrontier and pioneer life, californiaTopographical surveyingEngineersSourcesGold discoveriesHistoryEnvironmental conditionsFrontier and pioneer lifeGeographyDiariesOfficersHISTORY / United States / State & Local / West (AK, CA, CO, HI, ID, MT, NV, UT, WY)HISTORY / United States / 19th CenturyHISTORY / Military / United StatesUnited States. ArmyUnited StatesArmed ForcesEcologyGold mines and mining