The passes between mountains, often known as notches in New England because of their steep sides carved by glaciers, offer spectacular scenery. Depending on how you count, there are more than 100 notches stretching from western New York to northern Maine (see map). Some are well known and accessible by car, like FranconiaCrawford and Pinkham. Others, like Carter and Mahoosuc, make great hiking destinations.

Postcard images from the New York Public Library Digital Collections: