Snow-covered Mamaroneck Avenue (Mamaroneck, New York around 1900).  To the left is the entrance to Harbor Island.  Down the center is the West Post Road (now known as Route 1 or the Boston Post Road).
Source: Mamaroneck 1661-1961: A Panorama of Her First Three Centuries published by the Villages of Larchmont and Mamaroneck and the Town of Mamaroneck, p.22.