Strange creatures in the woods near UFO hot spots

I was in High School at the time, living in a tiny "1950's style" town. A "kooky" friend of mine had reported seeing a large "alien blob" of some sort about 1/4 mile behind the town firehouse in the middle of the woods. I had to laugh at first. No one really believed it. 
He kept talking about it for several days, and finally I asked him to show me. He did! It was about 5ft across, and 2.5 feet high. Very irregular. It looked like a large mound of preserved animal remains. It had no bones. No birds, no bugs, worms or maggots were in/on it. It didn't smell either. I could see the pattern of veins in the membrane. I
 poked it with a stick, and it was tough and leathery. It was also pale greyish-white in color. At the time I had no ideas about it, and I sort of forgot about it. Later I read two books, one about UFO sightings in the same area...and another about secret govm't experiments with anti-gravity. It seems that this is the effect that this technology has on living tissue. The authors of the books desribed things almost identical. 
Within a year or two of my experience, another friend said he saw a UFO (black triangle) about 1 mile from this location, still other friends reported seeing strange animals in the woods.
Witness elects to remain totally anonymous.  PD