Another map - from National Geographic (poor reproduction)

Works Cited

Underground Railroad Routes 1860

The Underground Railroad was a loose association of people, not a system of tracks. Indeed, much of a typical flight to freedom involved many miles of walking,
usually at night to avoid detection. Still, it is possible to see these patterns in the escape routes. The refugee slaves tended to areas of easier, known, and more secretive routes, such as the Mississippi river and the Appalachian Mountains.

The Fugitive Slave Bill of 1850 made it more dangerous for runaways to stay in urban areas in the North. Therefore, more salves continued on to Canada or to the Caribbean in the aftermath of this bill.

Map from "The Underground Railroad" Written and illustrated by Raymond Bial (1995).