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Pony Express National Historic Trail
PARO
SWRO
MWRO
NRRO
California
Colorado
Kansas
Nebraska
Nevada
Missouri
Utah
Wyoming
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Oregon National Historic Trail
MWRO
NWRO
NRRO
Idaho
Kansas
Nebraska
Oregon
Missouri
Wyoming
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Mormon Pioneer National Historic Trail
MWRO
NRRO
SWRO
Illinois
Iowa
Nebraska
Utah
Wyoming
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Devils Tower National Monument
NRRO
Wyoming
National Monument
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Fort Laramie National Historic Site
NRRO
Wyoming
National Historic Site
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Fossil Butte National Monument
NRRO
Wyoming
National Monument
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Grand Teton National Park
NRRO
Wyoming
National Park
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John D. Rockefeller Memorial Parkway
NRRO
Wyoming
National Parkway
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Yellowstone National Park
NRRO
Wyoming
Idaho
Montana
National Park
