The Historical Society of
Rockland County
A Brief History of Rockland County
Rockland County is the smallest county in New York State outside the five boroughs of New York City. It is bounded by the Hudson River on the east, the State of New Jersey on the south, and the Ramapo Mountains to the north and west. Although the county consists of only 176 square miles, it is a land rich in history.
To a newcomer, Rockland County may appear to be border-to-border housing developments built over the past forty years, but its historical roots go back almost four hundred years—more than ten thousand years if you include Native American history. Records indicate that the first residents were the Indians of the Delaware or Lenape Nation, who were scattered throughout the county in small bands. ...
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BUS DAYTRIPS
The Spy and the Traitor:
The Andre-Arnold Affair
Saturdays: April 11, May 9, June 13, July 11, August 8, September 19, & October 10
Coming Soon
Rockland in the Revolution
A 250th Anniversary Exploration
To celebrate the semiquincentennial anniversary of the signing of the Declaration of Independence, the 2026 exhibition will take a deep look at the American War for Independence through the eyes of notable Rockland County historians, past and present.
Coming Soon: March Podcast
Crossroads of
Rockland History
The Remarkable Landscape
Design of Mary Mowbray-Clarke
Executive Director Rachel Whitlow and Educator Luke Spaltro discuss the new exhibition at the Haverstraw Brick Museum, “The Remarkable Landscape Design of Mary Mowbray-Clarke.”
Upcoming Events
Rockland County Local History Event Calendar
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1pm HS-Nyacks: "Abolitionists and Suffragists" Exhibition
1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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1pm HS-Nyacks: "Abolitionists and Suffragists" Exhibition
1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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7pm HS-Nyacks: Regular Meeting
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1pm HS-Nyacks: "Abolitionists and Suffragists" Exhibition
1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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7pm Genealogical Society of RC: Monthly Meeting
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1pm HS-Nyacks: "Abolitionists and Suffragists" Exhibition
1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
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1pm Haverstraw Brick Museum: Mary Mowbray-Clarke Exhibition
Press Room
South of the Mountains
Dive into a world of captivating stories, insightful discussions, and endless entertainment.
Issues of South of the Mountains from 1957 to 2013 are available in fully searchable PDF form online via the New York Heritage portal.
Collections
The Historical Society of Rockland County's collection comprises approximately 3,650 objects that date from the early eighteenth century to the present.
Podcasts
Crossroads of
Rockland History
Host Clare Sheridan welcomes guests every month to explore, celebrate and learn about the rich history of Rockland County and New York's Lower Hudson Valley.
