Summer tours under escort
Subtitle: Yellowstone National Park, Rocky Mountain National Park, Zion National Park, Bryce Canyon-Grand Canyon, California
Publisher: Dept. of Tours, Chicago & North Western Ry., Union Pacific System
Published: 1927
Place of publication: Chicago
Language: eng
Number of pages: 48
Subjects: National parks and reserves; Tours
Notes: cat 20081007 dss ysnp