Justin Madron

Year-by-year maps of homesteading claims and the dispossession of Native Americans.

The maps embrace everyone —free and enslaved, from the first national census of the late 18th century to the sophisticated surveys of the early 21st century.

An interactive set of maps documenting the more than 300,000 families displaced by urban renewal projects between 1955 and 1966.

In the 1930s, the federal government created redlining maps for almost every major U.S. city. Explore those maps and their contexts in a brand new version of this project.

An interactive set of maps and narratives of the forced migration of approximately 850,000 enslaved people from 1810-1860.

An interactive map of overland trails that settlers followed on their western journeys.

An interactive map of U.S. canals in the first half of the 19th century.

An interactive map of immigrant populations in the United States.