| skos:altLabel | - surveys
- survey
- surveying
- railroad lines
- studies of possible transcontinental railroad routes
- Isaac Steven's Railway Survey
- Northern Pacific Railroad Exploration and Survey
- Northern Pacific Railroad Survey
- Pac. R.R. ''Reports''
- Pacific Railroad Exploration
- Pacific Railroad Exploring Expedition
- Pacific Railroad Report
- Pacific Railroad Survey
- northern Pacific railroad survey of 1853
- railroad surveys
- surveying a route
- surveying expedition
- transcontinental railroad routes
- a general reconnaissance of several possible routes that had been done earlier
- surveys of five different potential transcontinental routes
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