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Subject (Region)
- Indian Territory (1834-1907)9
- District of Columbia8
- New Mexico Territory (1850-1912)7
- United States7
- Hot Springs National Park (Arkansas)6
- Yellowstone National Park6
- Kings Canyon National Park (California)5
- Sequoia National Park (California)5
- Yosemite National Park (California)5
- Alaska, Department and District of (1867-1912)4
- Utah Territory (1850-1896)4
- Arizona Territory (1863-1912)3
- Eisenhower Executive Office Building3
- Mississippi River3
- South Pass (Mississippi River)3
- Texas3
- West Point, New York3
- Colorado Territory (1861-1876)2
- Nicaragua Canal (Nicaragua)2
- Oklahoma Territory (1890-1907)2