As you walk to work or drive to the grocery store, you crisscross a network of hidden streams and rivers beneath Baltimore’s concrete surface.

A public art installation and walking tour created by a local artist and designer seeks to pull back the pavement on Baltimore’s underground waterways. Ghost Rivers is a series of installations, wayfinding markers, and writings that took several years of research and preparation.

Bruce Willen is the artist behind the project, and also the founder of design studio Public Mechanics. When we spoke to him in October, we asked about how he first learned of this underground history, and his other work illustrating the hidden history surrounding us.

Guided walking tours led by Willen and environmental advocacy group Blue Water Baltimore are tentatively planned for the Spring. Dates will be announced on the Ghost Rivers website.

And listen to an archived episode of Maryland Curiosity Bureau, where host Aaron Henkin learned more about Baltimore's hidden streams and rivers.

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