Why is New York mountainous?

New York's mountainous regions are primarily due to its geological history and the effects of glacial activity. The Appalachian Mountains, which extend into New York, were formed over millions of years through tectonic activity and erosion. Additionally, the last Ice Age sculpted the landscape, creating features like the Adirondack Mountains, which are characterized by rugged terrain and peaks shaped by glacial processes. These factors combined contribute to New York's varied topography, including its mountainous areas.