Last year I found myself part of a captive audience for a long presentation from the Rockland County Historical Society. It covered a lot of local area history. One story that caught my attention was about the collapse of a couple of blocks of the town of Haverstraw (originally called Haverstroo by the Dutch) in a massive landslide in 1906.
I knew that brick making was a major industry in the area but hadn’t given much thought to why that was. An abundance of natural clay deposits was the reason the brick factories were located in Haverstraw. Extensive mining of the clay more or less directly under the town led to erosion that eventually caused a giant landslide.