The Oxford railroad tunnel is part of the old Delaware, Lackawanna & Western Branch, and has been defunct for several decades. This line runs from the Muscontencong River to Washington where it joins an active Conrail Line. The northern part of this line will take you to the Manunka Chunk tunnel.
Most railroad tunnels are wet from leakage of groundwater. The Oxford tunnel isn’t just wet, it’s got a river inside it, typically anywhere from 3 to 9 inches deep. The water that drains from it empties into the Pohatcong Creek. Enterprising explorers established a series of tires as a dry form of access to the occasion islands of dry dirt amidst the unending water. Reminds me of the tires you have to quickly run thru in high school, except here the idea is walk *on* the tires, not *in* them. Midway thru the mile long tunnel there is a roof collapse and the debris creates a dam about 4 ft high. Behind it is water of considerable depth, and supposedly trout breed in it….
As we left the tunnel, my friend noticed a small crevice beside the mouth of the tunnel and decided to explore. He did his monkey impersonation and soon scuttled up and inside it. He emerged on top of the tunnel directly over the mouth as you can see below.
See all the pictures.