Dietrich Werner 2009

The CHHS remembers founder Dietrich Werner.

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The Society is a 501(c)(3) charitable organization.


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Local history, contemporary art.

The Century House Historical Society is a not-for-profit educational organization dedicated to the preservation of industrial history of the Rosendale natural cement region. The Society is located at the Snyder Estate in New York’s historic Hudson Valley.


The normal site hours are 10AM to 4PM for self guided tours daily. The Museum is closed due to the pandemic. When the mine freezes over, the site will be closed until the spring thaw.

Visiting the site is free for members, all others please leave a donation!


News and Events:

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Thanks for coming out to the opening day lectures! ... See MoreSee Less

14 hours ago
Thanks for coming out to the opening day lectures!

CHHS opening day is Sunday May 9th! Featuring the geology walk & talk by Prof. Steven Schimmrich. ... See MoreSee Less

5 days ago
CHHS opening day is Sunday May 9th! Featuring the geology walk & talk by Prof. Steven Schimmrich.

Comment on Facebook

I remember riding past this area in the summer when I was a kid and sticking my arms out the car window to feel the cool air coming from the “cave”. I always heard that they grew mushrooms there in the 50s.

Are reservations needed?

Where exactly is the meeting place? Thanks.

Closed today due to tree work being done by Limber Tree Services ... See MoreSee Less

6 days ago
Closed today due to tree work being done by Limber Tree ServicesImage attachment
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The Snyder Estate Natural Cement Historic District is listed on the National Register of Historic Places.
The Society is chartered by the New York State Education Department.