This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Transcontinental railroad route. First Transcontinental Railroad Crossing the Western United States to California Built in the and opening in from poopyland own assumed Urbancommons First Transcontinental Railroad Rail transport maps of the United States Maps of the history of the United States Maps of the Western United States