Mays' Mill Tunnel 4k Walking through an old railway tunnel in Pennsylvannia

The May's Mill Tunnel, located along the Sandy Creek Trail in Venango County, PA, is a remnant of the Oil Creek and Titusville Railroad (OCTRR). Built in the late 1800s, the tunnel played a crucial role in transporting oil from the oil fields of northwestern Pennsylvania to refineries and markets.
The OCTRR was one of the earliest railroads in the United States to adopt standard gauge tracks, which became the norm for the country's rail system. The May's Mill Tunnel is a testament to the engineering ingenuity of that era and the booming oil industry that shaped the region's development.