1994 Press Photo a cyclist on a trail with erosion-control blocks in Wisconsin

Above: A cyclist pedals over a stretch of trail, which is covered with nearly 10,000 lightweight, erosion-control blocks. One official says the new blocks, which are a foot wide, 3 feet long and an inch thick, provide 100 times more protection for fragile terrain. The total cost of the installation is about $125,000. Wisconsin- Parks.

Photo measures 9.25 x 6 inches. Photo is dated 08-01-1994.

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