Named for the resemblance (if you squint while looking) of an 80 year old rail side loading dock made out of piled and sloped sacks of concrete now overgrown by the jungle. Neither the dock nor the rails are left but the ride is huge amount of fun and there are many points of interest along the way. There are jungle cliffs to scale or just to look at, there is bird life in abundance and the occasional large lizard crosses your path. The single track keeps you constantly twisting and turning with some of the passages through the trees where barely an inch of handlebar clearance exists. This trail ends (or begins) at Kalabera Cave…a stop worth making. See the Long Loop, Kimi-kazi- Autobahn, Santa Claus, Banzai/Cowtown trail descriptions to see how this fascinating trail becomes part of the loop system in the Marpi area of Saipan Island by combining with some paved and mostly unpaved roads.