Thank you to geo-mule for the original placement of this cache. As an avid railfan, I am proud to host this cache. This is one of my favorite places in this area. So much history. Please check out the other two caches further up. One of the best parts of this trail is the waterfalls, further up the trail. Note the history with the rock walls and building foundations as you explore. The trail to get to GZ, is located to the right of the tunnel. It is a active trail for hikers. Please stay clear of the railroad tracks. The Hoosac Tunnel (also called Hoosic or Hoosick Tunnel) is a 4.75-mile (7.64 km) active railroad tunnel owned by Pan Am Southern Railways, in western Massachusetts that passes through the Hoosac Range, an extension of Vermont's Green Mountains. It runs in a straight line from its east portal, along the Deerfield River in the town of Florida, to its west portal in the city of North Adams. Please, do not tresspass in the tunnel. I know it is tempting. Remember, tresspassing on railroad property is illegal.
Work began in 1XXX under an estimated cost of $2 million and ended in 1YYY, having used $21 million. At its completion, the tunnel was the world's second-longest, after the 8.5-mile (13.7 km) Mont Cenis Tunnel through the French Alps. It was the longest tunnel in North America until the 1916 completion of the Connaught Tunnel under Rogers Pass in British Columbia. It remains the longest active transportation tunnel east of the Rocky Mountains, and as of 1989 is the sixth longest railroad tunnel in North America. The American Society of Civil Engineers made the tunnel an Historic Civil Engineering Landmark in 1975.
In order to find the Northern coordinates, take the last three digits of the start of the construction and minus 315 from it. Then take the last three digits of the year construction was completed and add 39.
N 42 40.XXX. W 72 59.YYY
Please replace as found.