As miles of longwall mining crisscrossed beneath, he said he had found serious disruption of the life of the creek bed, which dropped 3 feet as the surrounding land subsided.

Today, after more than 60 years of superhighway building, nearly four million miles of public roadway crisscross the country, accommodating more than 200 million cars, trucks and motorcycles.

You'll feel on top of the world in the peaks over Park City, where over 300 miles of trails crisscross the mountains.

More than 200,000 miles of interstate pipelines crisscross the country, moving natural gas from Canada, the Southwest and other producing regions to fuel factories, power utilities and heat houses.

A hundred miles of hiking and horseback trails crisscross the park and are mostly "left natural and unmarked," according to the visitors' guide.

Thirty-five miles of hiking trails crisscross the forest, while wooden viewing platforms overlooking various habitat provide hikers with a front-row seat on nature.

More than 200 miles of trails crisscross the Wilderness, including about 30 miles of the Continental Divide Trail.

The canals - more than 1,300 miles of them crisscross the island - have level footpaths running along their entire length.