
Tilly Foster Mine and the expanding reservoir system of the New York City watershed define this landscape at the close of the 19th century. This survey captures a critical period of infrastructure development where natural lakes like Lake Mahopac and Lake Gilead are joined by massive engineering projects, including the West Branch Reservoir and Middle Branch Reservoir. The rail network is equally dense, featuring the New York City and Northern R. R. and the Mahopac Branch providing essential links for the local economy and early suburban growth.
89 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
8 editions found
10 maps found

1892 Carmel
Putnam County, NY

1893 Carmel
Putnam County, NY

1894 Carmel
Putnam County, NY

1928 Carmel
Putnam County, NY

1956 Oscawana Lake
Putnam County, NY
2010 Oscawana Lake
Putnam County, NY
2013 Oscawana Lake
Putnam County, NY
2016 Oscawana Lake
Putnam County, NY
2019 Oscawana Lake
Putnam County, NY

2023 Oscawana Lake
Putnam County, NY