Item 36927 - Map of underground routes to Canada, 1898 Item 36927 - Map of underground routes to Canada, 1898 Contributed by Maine Historical Society Item 36927 Zoom 5588px x 2790px - 18.6"w x 9.3"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info A map of underground railroad routes to Canada that suggests the ways fugitive slaves escaped to freedom. The map is from The Underground Railroad from Slavery to Freedom by Wilbur H. Siebert (New York, 1899). Show Details