Accessibility Tools
Invert colors
Monochrome
Dark contrast
Light contrast
Low saturation
High saturation
Highlight links
Highlight headings
Screen reader
Read mode
Content scaling
100
%
Font size
100
%
Line height
100
%
Letter spacing
100
%
Skip to main content
Plan a Visit
An Easy Weekend Visit
Attractions on the Trail
The Keeper's House
Explore Online
Patch Program
Self-Guided Walks
Events
News
History
Newsletters
Newsletter Articles
Old Croton Aqueduct Bibliography
How New York Became the Empire City
About Us
Our Accomplishments
Tending the Trail
Become a Member
Volunteer
Our Board
Shop
Maps
FOCA Store on Zazzle
Vintage Clothing
Books
SUPPORT US
Donate Now
Join or Renew your Membership
Log In
Plan a Visit
An Easy Weekend Visit
Attractions on the Trail
The Keeper's House
Explore Online
Patch Program
Self-Guided Walks
Events
News
History
Newsletters
Newsletter Articles
Old Croton Aqueduct Bibliography
How New York Became the Empire City
About Us
Our Accomplishments
Tending the Trail
Become a Member
Volunteer
Our Board
Shop
Maps
FOCA Store on Zazzle
Vintage Clothing
Books
SUPPORT US
Donate Now
Join or Renew your Membership
Read more
Read more
Next Three Events
Dobbs Ferry Library Storytime at the Keeper’s House
Fri June 20, 2025 – 10:30 AM
Read more
Musical Weir Tour
Sat June 21, 2025 – 12:00 PM
Read more
Help Native Plants Thrive on the Old Croton Aqueduct
Sun June 22, 2025 – 9:30 AM
Read more
MORE EVENTS
Recent News
Ossining Girl Scouts Clean Up
May 21, 2025
|
Laura Compagni
Read more
Dobbs Ferry Parents Meet on Aqueduct for Family Meander
May 6, 2025
|
JoannaRiesman
Read more
Collaboration between Friends of the OCA and the Ossining Youth Bureau – March 2025
April 17, 2025
|
JoannaRiesman
Read more