Skip to content
Sponsored

Thanks to our advertising sponsor -

Subsidence Walking Tour

From SPUR:

From SPUR:

There are many ways in which San Francisco is constantly on the move. One of these is ongoing subsidence: the motion of the Earth’s surface due to geological changes. Join geologist David Schwartz of the United States Geological Survey for a walk through the South of Market neighborhood on former marshland covered in the late 1800s.  As we wind in and out of the side streets you will see evidence of subsidence such as garages and entrance doors below street level, changes in street grade, and broad swales in streets, with Howard Street being a primary example. This event is generously supported by Degenkolb Engineering.

This tour will last from 12:00pm to approximately 2:00pm.

$10. Limit 25 people
SPUR members only
Register here

Photo of Aaron Bialick
Aaron was the editor of Streetsblog San Francisco from January 2012 until October 2015. He joined Streetsblog in 2010 after studying rhetoric and political communication at SF State University and spending a semester in Denmark.

Read More:

Streetsblog has migrated to a new comment system. New commenters can register directly in the comments section of any article. Returning commenters: your previous comments and display name have been preserved, but you'll need to reclaim your account by clicking "Forgot your password?" on the sign-in form, entering your email, and following the verification link to set a new password — this is required because passwords could not be carried over during the migration. For questions, contact tips@streetsblog.org.

More from Streetsblog San Francisco

Where the Hottest Blocks in Your City Are — And How To Cool Them Down

April 14, 2026

AC Transit, Muni, Caltrain Predict Service Collapse Without More Funding

Zack Deutsch-Gross
April 14, 2026
See all posts