United States government surveys of the American West

Target entity: United States government surveys of the American West
Context triple: [Raynolds Expedition to the Yellowstone and Missouri River headwaters, partOf, United States government surveys of the American West]

• A. Gunnison–Beckwith survey
  The Gunnison–Beckwith survey was a mid-19th-century U.S. Army exploration and mapping expedition that assessed potential railroad routes across the central Rocky Mountains.
• B. Report on the Lands of the Arid Region of the United States
  Report on the Lands of the Arid Region of the United States is an influential 1878 scientific and policy study that analyzed the climate, water resources, and settlement potential of the American West and proposed reforms for its sustainable development.
• C. Exploration of the Colorado River of the West and Its Tributaries
  Exploration of the Colorado River of the West and Its Tributaries is John Wesley Powell’s classic 19th-century account of his pioneering scientific and geographic survey of the Colorado River and the Grand Canyon region.
• D. U.S. Geological Exploration of the Fortieth Parallel
  The U.S. Geological Exploration of the Fortieth Parallel was a major 19th-century American scientific survey that mapped and studied the geology and natural resources along the 40th parallel in the western United States.
• E. U.S. Geographical and Geological Survey of the Rocky Mountain Region
  The U.S. Geographical and Geological Survey of the Rocky Mountain Region was a 19th-century federal scientific survey that conducted pioneering geological and topographical investigations across the Rocky Mountains in the American West.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: United States government surveys of the American West
Target entity description: United States government surveys of the American West were 19th-century federally sponsored expeditions that mapped, studied, and documented the geography, resources, and Indigenous peoples of the western territories to support expansion and policy-making.

• A. Gunnison–Beckwith survey
  The Gunnison–Beckwith survey was a mid-19th-century U.S. Army exploration and mapping expedition that assessed potential railroad routes across the central Rocky Mountains.
• B. Report on the Lands of the Arid Region of the United States
  Report on the Lands of the Arid Region of the United States is an influential 1878 scientific and policy study that analyzed the climate, water resources, and settlement potential of the American West and proposed reforms for its sustainable development.
• C. Exploration of the Colorado River of the West and Its Tributaries
  Exploration of the Colorado River of the West and Its Tributaries is John Wesley Powell’s classic 19th-century account of his pioneering scientific and geographic survey of the Colorado River and the Grand Canyon region.
• D. U.S. Geological Exploration of the Fortieth Parallel
  The U.S. Geological Exploration of the Fortieth Parallel was a major 19th-century American scientific survey that mapped and studied the geology and natural resources along the 40th parallel in the western United States.
• E. U.S. Geographical and Geological Survey of the Rocky Mountain Region
  The U.S. Geographical and Geological Survey of the Rocky Mountain Region was a 19th-century federal scientific survey that conducted pioneering geological and topographical investigations across the Rocky Mountains in the American West.
• F. None of above. chosen