The D&H Railroad, or Delaware and Hudson Railway, was a significant transportation company in the northeastern United States. Established in 1823, it primarily served the coal industry by transporting coal from the Pennsylvania mines to markets in New York and New England. The railroad played a crucial role in the economic development of the region. Over the years, the D&H expanded its network, connecting various cities and towns. It became known for its scenic routes, particularly through the Adirondack Mountains. The railroad eventually merged with other companies, but its legacy remains an important part of American transportation history.