Calendar

Walk the High Bridge & Explore Nearby

02/09/2019 - 10:00am

Croton Reservoir & Dam Hike

02/02/2019 - 10:00am

The Tunnel: A Passage Through History

12/16/2018 - 1:00pm to 02/04/2019 - 4:00pm

Opening Reception for "The Tunnel: A Passage Through History"

12/16/2018 - 5:30pm to 7:30pm

Along the Aqueduct Trail - Meet the new Curator of the Lenoir Nature Preserve, Sara Cavanaugh

01/05/2019 - 1:30pm

CANCELLED - Free-A-Tree Invasive Vine Removal

01/05/2019 - 10:00am to 1:00pm

Free-A-Tree Invasive Vine Removal

02/02/2019 - 10:00am to 1:00pm

Free-A-Tree Invasive Vine Removal

12/01/2018 - 10:00am to 1:00pm

Tours of the Armour-Stiner Octagon House

11/18/2018 - 11:00am to 3:00pm

Tours of the Armour-Stiner Octagon House

11/17/2018 - 11:00am to 3:00pm

Croton Reservoir & Dam First Day Hike

01/01/2019 - 12:00pm

New York City's Water System: A Talk by Adam Bosch

11/09/2018 - 7:00pm

Weir Tour

11/10/2018 - 10:00am

Reservoir Cleanup Day

09/30/2018 - 12:00pm to 3:00pm

Distributing Reservoir Stones at New York Public Library

12/08/2018 - 10:00am

Croton Reservoir & Dam Hike

12/01/2018 - 10:00am

Croton Reservoir & Dam Hike

11/03/2018 - 10:00am

Brick by Brick: The Erie Canal & the Building Boom

10/02/2018 - 12:00pm to 01/19/2019 - 5:00pm

Walk the High Bridge & Explore Nearby

10/27/2018 - 9:30am

Weir Tour

10/13/2018 - 10:00am

Rockwood Hall – Archville Bridge – Rockefeller Preserve

10/08/2018 - 1:00pm

Unravelling the 5 Corners Knot: Guided Old Croton Aqueduct Trail Walk

10/07/2018 - 1:30pm

Old Croton Aqueduct Keeper’s House - Open House

10/07/2018 - 1:00pm to 4:00pm

Meandering among the Mansions of the Historic Millionaires

09/23/2018 - 12:00pm

Croton Reservoir and Dam Hike

09/22/2018 - 10:00am

Weir Tour

09/08/2018 - 10:00am

Croton Reservoir and Dam Hike (rain or shine)

08/26/2018 - 10:00am

Walk the High Bridge and Explore Nearby

08/18/2018 - 9:40am

Weir Tour

08/05/2018 - 10:00am

Walk the High Bridge and Explore Nearby

07/21/2018 - 9:40am

High Bridge Walking Tour by NYC H20

06/24/2018 - 12:00pm

Invasive Species Workshop

07/15/2018 - 10:00am to 12:00pm

Weir Tour

07/14/2018 - 10:00am

Croton Reservoir & Dam Hike (rain or shine)

07/08/2018 - 10:00am

Weir Tour (WEEKDAY)

05/25/2018 - 4:00pm

Highbridge Trails Stewardship

05/26/2018 - 11:00am to 2:00pm

"The Old Croton Aqueduct" - a talk by Cornelia Cotton

06/03/2018 - 4:30pm

Highbridge Rocks Community Festival

05/12/2018 - 11:00am to 3:00pm

Walking Tour of the High Bridge

05/20/2018 - 12:00pm

Weir Tour

06/17/2018 - 10:00am

Old Croton Aqueduct Keeper’s House Open House & Curator’s Talk

06/16/2018 - 11:00am to 4:00pm

Weir Tours (continuous) as part of the Ossining Village Fair

06/09/2018 - 10:00am to 4:00pm

Van Cortlandt Park Loop

05/27/2018 - 11:00am

Croton Reservoir & Dam Hike

05/20/2018 - 9:00am

Weir Tour

05/19/2018 - 12:15pm

Walk the High Bridge & Explore Nearby

05/12/2018 - 10:30am

Seventh Annual I Love My Park Day - INVASIVES CLEANUP

05/05/2018 - 9:30am to 3:00pm

Yonkers OCA Cleanup

04/21/2018 - 9:00am to 2:00pm

Weir Tour

04/21/2018 - 10:00am

Croton Reservoir & Dam Hike

04/15/2018 - 11:00am

Untermyer Park – Joint walk with WTA

04/14/2018 - 10:00am

Old Croton Aqueduct Volunteer Day – Rid the Trail of Invasive Plants with the Friends of the Old Croton Aqueduct and the NY-NJ Trail Conference

04/07/2018 - 9:00am to 2:00pm

Croton Reservoir & Dam Hike

03/24/2018 - 10:00am

Walk the High Bridge & Explore Nearby

03/11/2018 - 10:30am

Weir Tour

03/10/2018 - 10:00am

Free-A-Tree on the OCA

03/03/2018 - 10:00am to 1:00pm

Riverwalk-Irvington Loop walk. Ramble along the Riverwalk and Aqueduct Trails past the Estates of Gilded Age Millionaires

02/10/2018 - 11:00am

Free a Tree on the OCA

02/03/2018 - 10:00am to 1:00pm

FOCA Annual Meeting 2018 - "Operating and Maintaining the Greatest Waterworks in America"

04/29/2018 - 2:00pm

Trivia Contest at the Watershed Relief Map

01/28/2018 - 2:00pm

Croton Reservoir & Dam Hike

01/01/2018 - 12:00pm

Holiday Gathering

12/09/2017 - 1:30pm to 4:00pm

Weir Tour

12/02/2017 - 10:00am

Van Cortlandt Park to High Bridge Walk

11/19/2017 - 11:00am

To Quench The Thirst of New Yorkers

09/02/2017 - 10:00am to 12/31/2017 - 5:00pm

Yonkers Pop-Up Cleanup

10/02/2017 - 10:30am to 2:30pm

Old Croton Bike Tour - NYC H20

10/28/2017 - 12:00pm

Tibbetts Brook Exploration - NYC H20

10/01/2017 - 4:00pm

Old NYC Water Supply Walk - NYC H20

09/27/2017 - 6:30pm

Distributing Reservoir Stones at New York Public Library

11/18/2017 - 10:00am

Van Cortlandt Park Loop – Old Croton Aqueduct & Putnam Rail Trails

10/22/2017 - 11:00am

Weir Tour

10/21/2017 - 12:30pm

Liquid Geographies @ The New School

09/26/2017 - 6:00pm to 8:00pm

175th Anniversary Celebration!

10/08/2017 - 2:00pm to 6:00pm

Ossining Annual 5K Run, 2 Mile Walk

09/09/2017 - 9:00am

Retracing the Capture of Revolutionary War British Spy Major Andre

11/04/2017 - 10:00am

Ramble along the Riverwalk and Aqueduct Trails past the Estates of Gilded Age Millionaires

10/29/2017 - 10:00am

Weir Tour

10/07/2017 - 10:00am

“Woman on a Wheel” - centennial of Women’s Suffrage in New York State

09/23/2017 - 10:00am

Weekday Weir Tour

09/08/2017 - 2:00pm

High Bridge Walking Tour

09/17/2017 - 12:00pm

175th Anniversary Reception, Hilltop Hanover

10/08/2017 - 3:00pm

175th Anniversary Presentation - Hilltop Hanover

09/30/2017 - 12:00pm

"The Art of the Aqueduct" @ Hilltop Hanover

09/23/2017 - 12:00pm

175th Anniversary Presentation - Hilltop Hanover

09/16/2017 - 12:00pm

175th Anniversary presentation - Hilltop Hanover

09/09/2017 - 12:00pm

Cornelia Cotton lecture on OCA prints

08/11/2017 - 5:00pm to 6:00pm

Weir Tour -- A Hudson River Valley Ramble Event

09/23/2017 - 10:00am

Meandering among the Mansions of the Historic Millionaires. A Hudson River Valley Ramble Event.

09/16/2017 - 10:00am

Croton Reservoir & Dam Hike

09/09/2017 - 10:00am

Weir Tour

08/26/2017 - 10:00am

Hastings Rowley’s Bridge Trail — Aqueduct Trail Walk

08/20/2017 - 10:00am

Croton Reservoir & Dam Hike

08/05/2017 - 10:00am

Croton Reservoir & Dam Hike

07/22/2017 - 10:00am

High Bridge Tour

07/15/2017 - 10:30am

Weir Tour

07/08/2017 - 10:00am

Invasive Plant Strike Force Volunteer Day

07/08/2017 - 9:00am to 2:00pm

Old NYC Water Supply Walk

06/15/2017 - 6:30pm to 8:30pm

Old Croton Aqueduct Keepers House & Quarry Walk

06/24/2017 - 11:00am

Designers for the Millionaires of the Gilded Age

06/18/2017 - 2:00pm to 3:30pm

Designers for the Millionaires of the Gilded Age

06/18/2017 - 11:00am to 12:30pm

Old Croton Aqueduct Keepers House – PATH THROUGH HISTORY

06/17/2017 - 10:00am to 4:00pm

Weir Tours (continuous) as part of the Ossining Village Fair

06/10/2017 - 10:00am to 4:00pm

Croton Reservoir & Dam Hike

06/04/2017 - 10:00am

High Bridge Tour

06/03/2017 - 10:30am

Weir Tour (weekday)

06/02/2017 - 10:00am

Meandering among the Historic Millionaires’ Mansions Walk

05/20/2017 - 10:00am

Weir Tour

05/06/2017 - 10:00am

Croton Reservoir & Dam Hike

04/29/2017 - 10:00am

Keeper's House Drop-In Hours

05/28/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/02/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/01/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

05/27/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

05/21/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

05/20/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

05/14/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

05/13/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

05/07/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

05/06/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/29/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/30/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/23/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/22/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/16/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/15/2017 - 10:00am to 4:00pm

Keeper's House Drop-in Hours

04/09/2017 - 10:00am to 4:00pm

Keeper's House Drop-In Hours

04/08/2017 - 10:00am to 4:00pm

Untermyer Park -- Joint walk with WTA

04/29/2017 - 10:00am

Old Croton Aqueduct at Ossining -- Weir Tour

04/15/2017 - 10:00am

Croton Reservoir and Dam Hike

03/18/2017 - 10:00am

History of the High Bridge and the Croton Waterworks

03/26/2017 - 3:30pm to 5:00pm

Sixth Annual I Love My Parks Day

05/06/2017 - 9:30am to 3:30pm

Old Croton Aqueduct Distributing Reservoir Stones at New York Public Library Tour

03/25/2017 - 10:00am to 12:00pm

Annual Yonkers Trail Cleanup 2017

04/22/2017 - 9:00am to 2:00pm

Old Croton Aqueduct at Ossining - Weir Tour

02/18/2017 - 2:00pm

Annual Meeting: "Turning Water Into Money: Aaron Burr's Manhattan Company"

04/23/2017 - 2:00pm to 4:00pm

Keeper's House CLOSED

12/24/2016 - 10:00am to 12/25/2016 - 4:00pm

A Historical Perspective on Water in NYC, with special focus on Jamaica Bay - lecture by Eric Sanderson

12/09/2016 - 7:00pm to 8:30pm

Sing Sing Kill Greenway and the Old Croton Aqueduct at Ossining

01/21/2017 - 10:00am

Croton Reservoir & Dam Hike

01/01/2017 - 12:00pm

Old Croton Aqueduct at Ossining - Weir Tour

11/12/2016 - 10:00am

Walk Around Jerome Park Reservoir

11/20/2016 - 12:00pm

Walk Around Jerome Park Reservoir

11/19/2016 - 12:00pm

Croton Reservoir and Dam Hike

10/29/2016 - 11:00am

Old Croton Aqueduct at Ossining – Weir Tour

10/23/2016 - 2:00pm

The Irvington Historical Society Fall Benefit Event

09/10/2016 - 1:00pm to 5:00pm

Dobbs Ferry Festa

10/15/2016 - 12:00pm to 4:00pm

High Bridge Tour

10/16/2016 - 10:30am

Old Croton Aqueduct and Dam Ramble

10/02/2016 - 9:00am

Retracing the Capture of Revolutionary War Spy Major Andre

10/01/2016 - 10:00am

Meandering among the Historic Millionaires’ Mansions Walk

09/25/2016 - 2:00pm

Old Croton Aqueduct at Ossining – Weir Tour

09/17/2016 - 10:00am

Croton Reservoir and Dam Hike

09/10/2016 - 10:00am

Walk the High Bridge and Explore Nearby

09/03/2016 - 9:30am

Old Croton Aqueduct at Ossining – Weir Tour

08/28/2016 - 2:00pm

Old Croton Aqueduct in Yonkers to Untermyer Gardens Walk

08/27/2016 - 10:00am

Old Croton Aqueduct and Dam Ramble

07/31/2016 - 9:00am

Old Croton Aqueduct at Ossining – Weir Tour

07/16/2016 - 10:00am

Walk the High Bridge and Explore Nearby

07/12/2016 - 9:00am

NYC H2O: Old NYC Water Supply Walk

07/14/2016 - 6:30pm

Open House at the Keeper's House

06/26/2016 - 2:00pm to 5:00pm

Keeper's House Drop-in Hours

06/19/2016 - 10:00am to 4:00pm

Keeper's House Drop-in Hours

06/18/2016 - 10:00am to 4:00pm

Keeper's House Drop-in Hours

06/12/2016 - 10:00am to 4:00pm

Keeper's House Drop-in Hours

06/11/2016 - 10:00am to 4:00pm

Keeper's House Drop-in Hours

06/05/2016 - 10:00am to 4:00pm

Keeper's House Drop-in Hours

06/04/2016 - 10:00am to 4:00pm

NYC H20 High Bridge Walking Tour

08/07/2016 - 1:00pm

Riverkeeper talk: Meteorologist Storm Field & Riverkeeper Boat Captain John Lipscomb

05/02/2016 - 7:00pm

NYC H20 event: Ridgewood Reservoir Community Tour

04/23/2016 - 10:00am

OCA/Putnam Saleté Printemps Randonnée

04/23/2016 - 8:30am

Invasive Strike Force Volunteer Day

06/18/2016 - 10:00am to 3:00pm

Lower Hudson Watershed Collaboration and Partnership Event

04/21/2016 - 6:00pm

Volunteer Docent Meeting

04/17/2016 - 1:30pm

Lecture: Preserving New York with Anthony C Wood

04/17/2016 - 2:30pm

Volunteer Docent Meeting

04/12/2016 - 10:00am

Ossining Water Treatment Plant Tour

07/09/2016 - 10:00am

Meandering among the Historic Millionaires’ Mansions Walk

06/19/2016 - 2:00pm

Designers for the Millionaires of the Gilded Age

06/19/2016 - 10:30am

Mercy College to Aqueduct Keepers House and Mead House

06/18/2016 - 10:00am

Ossining Village Fair - Weir Tours

06/11/2016 - 9:00am to 4:00pm

Walk the High Bridge & Explore Nearby

06/07/2016 - 9:00am

Croton Reservoir & Dam Hike

06/04/2016 - 10:00am

Old Croton Aqueduct at Ossining Weir Tour

05/07/2016 - 10:00am

Old Croton Aqueduct walk, Hastings to Yonkers

04/30/2016 - 10:00am

FREE Film Screening: "FLOW"

04/14/2016 - 6:30pm

Hudson River Brick Makers

04/21/2016 - 7:30pm

Volunteer Docent Meeting

03/31/2016 - 7:30pm

Old Croton Aqueduct at Ossining Weir Tours

04/16/2016 - 2:00pm to 5:00pm

Croton Reservoir & Dam Hike

04/02/2016 - 11:00am

Old Croton Aqueduct at Ossining -- Weir Tour

03/26/2016 - 10:00am

Annual Yonkers Trail Clean-up

04/16/2016 - 9:00am to 2:00pm

Save the date: Walk under the Double Arch Bridge

04/16/2016 - 2:00pm

NYC H20 event: Tour of Yonkers Sewage Plant

03/02/2016 - 10:00am

I Love My Parks Day

05/07/2016 - 9:30am

FOCA Annual Meeting - Catskill Aqueduct

05/01/2016 - 2:00pm

NYC H2O event: Watershed Relief Map

02/07/2016 - 1:00pm

NYC H2O event: Daylighting Tibbetts Brook

02/19/2016 - 7:00pm

Walking on Water: The Past and Future of the Old Croton Aqueduct

02/28/2016 - 1:00pm

Copyright 2019 Friends of the Old Croton Aqueduct. All rights reserved.

Friends of the Old Croton Aqueduct is a private, non profit volunteer organization formed to protect and preserve the Old Croton Aqueduct. The Friends work to raise public awareness of the Aqueduct and trail and to secure the resources that will enable this historic greenway to remain unspoiled in perpetuity.

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