Harriet Tubman's underground railroad, and some ran away from their "owners", while some had nice owners they let them work for their freedom.
slaves did not use any transport they mostly walked
Slaves mostly walked..
The North had less use for slaves than the South did, and many Northern people helped slaves gain freedom.
They were traveling north, so the North Star was their guide.
Exactly what do you mean by this? I don't know. But Harriet did not lead the slaves to any star. She led them through an underground railroad.
They didn't use slaves. In fact, they freed slaves they found in confederate areas. These slaves followed the Union forces to stay safe.
The north did not abandon free slaves. Usually the slaves lived in peace in the North.
they used a boat
Because the tip of the Big Dipper is the North Star, and they use that as their compass.
Slaves
Slaves would carry the rich VIA a hand drwan or hand lifted cart
ships carages horse back