The Old Albany Post Road was created to deliver mail between New York City and Albany. Though it has been widened and straightened over the years, the route still follows much of present-day US Route 9. Here are some of the pages with information on the road and milestones, sorted by county:
New York City and Bronx:
- The Post Road – William Bryk's column in the New York press describes some of the history of the road and locations of some of the milestones in New York City.
- Historical Guide To New York – Published in 1909 by the City History Club of New York, this guide has a list of the milestones on Manhattan.
- The New York and Albany Post Road – Published in 1905 by Charles Gilbert Hine is a book about walking tours of the entire route and points of interest to be found along it.
Westchester County:
- Hudson Valley Ruins: Milestones – Rob Yasinsac's page with pictures of the existing milestones in Westchester County.
- Requiem For The Post Roads – General overview of the history behind the road and details on the route through Westchester.
- A Toast To Taverns – Also of interest, it has information on the taverns along the route.
- A Handy Book Of Curious Information – Published in 1913 by William Shepard Walsh, this book contains a section on milestones and their locations in Westchester County.
Putnam County:
- Capsule History of Old Albany Post Road – General information and history of the road near Philipstown in Putnam County.
Dutchess County:
- The Milestones Of Dutchess County – A video presentation by Marist College documenting the locations of current and former milestones along the route in Dutchess County.
Columbia County:
- Village of Kinderhook – A page on the history of Kinderhook mentions Milestone 137.
There was also apparently another post road on the west side of the Hudson. No information yet on whether this route had milestones or not.