You may have seen the term in a sci-fi series "Shape Shifter" awhile ago. This cache may change shapes as it goes along. What one may find another may not! The location will be generally the same so the numbers should remain in the same general area.
The area you are in is conducive to the process of change. The facility just a few hundred yards away changes waste into energy every day. This environmentally green machine processes up to 575 tons per day of municipal solid waste. Wheelabrator Gloucester has an electric generating capacity of 14,000 kilowatts; the equivalent of supplying the electrical needs of 15,000 New Jersey homes!
In 1975, Wheelabrator introduced the first large-scale, commercially successful waste-to-energy project in the United States when it opened the doors to Wheelabrator Saugus, located north of Boston, Massachusetts.
Now go have some good GREEN clean fun! Good Luck!!