• Location: IC Classroom, Green Library & Virtual (Zoom link provided upon registration)
• Date and Time: 10-11AM, Friday, May 8, 2026
• Lead Instructor: Zoe Dilles (Map Librarian)

Join us for a community mapping session where we will identify racially restrictive covenants in property deeds in Contra Costa County, California and become part of a nation-wide, crowd-sourced community mapping project with more than 14,000 participants! 

What is a racially restrictive covenant?

This is discriminatory language included in historic land and property documents to prevent non-White property ownership and residency. Covenants were used in every US state in the 20th century to segregate communities on the basis of race and ethnicity. 

What will we do in this workshop?

We will help identify racially restrictive language in scanned primary source documents and contribute to the University of Minnesota Mapping Prejudice project. In accordance with California law, counties must "proactively identify and redact unlawfully restrictive language that may be found in the public record." You will receive step-by-step support in the processs of transcribing information from historic property records so that it can be mapped and made into actionable data.

Details:

• Please register to attend in person or online over Zoom (hybrid).
• Open to all Stanford University community members. 
• Sign up for a free Zooniverse account to participate.
• Please bring a laptop.
• No prior mapping experience needed. 

Not a Stanford affiliate or can't make it to this session? Join a public online community mapping session through the University of Minnesota! 

For those attending the in-person event, please bring your Stanford ID card or mobile ID to enter the library.