Safe houses where people would protect/hide runaway slaves.
The routes that they discussed for the railroad was the from the north to the south and then stop in which ever city in the north also known that they were a free state.
River valley
tunnels
River valley
The Underground Railroad was used to help slaves in the U.S. escape to states that were free, or to Canada. The railroad was a system of safe houses and secret routes.
The Underground Railroad
The Underground Railroad
The Underground Railroad was not a person or a railroad, it was a network of secret routes that allowed slaves to escape to free states in the mid 1800s, created by Harriet Tubman.
The Underground Railroad wasn't a literal railroad, so there were no tracks. It was a metaphor for the routes that escaped slaves took on their journey North.
Underground Railroad
They were collectively known as the underground railroad.
the pony express The Underground Railroad.