Sentences with phrase «foot diameter hole»

Months later, a five - foot diameter hole appeared in the surface, erupting with smoke and steam.

Eleven 15 - foot diameter holes penetrate the limestone floor of this secluded body of water and you can see the reflective rays of sunlight penetrating its depths.

Not exact matches

What It's Made of: An array of giant concrete cylinders, 60 to 200 feet in diameter, each drilled with small holes to manipulate seismic waves.

A hole about four inches in diameter was dug by dropping a heavy eight - foot rod with a sharp iron bit, guided through a bamboo tube so that it kept pounding the same spot.

The Great Blue Hole, located in the center of the Lighthouse, is the world's largest known underwater sinkhole measuring 1000 feet in diameter and plunging to a depth of over 400 feet.

Almost perfectly circular, the Blue Hole is about 1000 feet / 300mt in diameter and over 400 feet / 130mt deep.

Visit by foot of hidden cave paintings in the «dry thorny forest» characteristic of the region before continuing the trip towards the Hoyo Cimarrón: a mystery of the nature consisting of a cylindrical hole of 170 ms approximately of diameter and similar depth.

Formed by the collapse of a cavern, the Blue Hole measures about 8 meters (26 feet) deep and is almost perfectly round with a diameter of 100 meters (330 feet).

Drilling equipment is used to bore small — diameter holes from depths of 60m to 120m (200 to 400 feet) deep.