The scene was at a "cube"-the three-dimensional equivalent of a city square, where four great tunnels intersected.

The tunnel intersected nearly all the major mines between Idaho Springs and Central City.

It was hoped that the tunnel would intersect previously undiscovered gold veins, but there is no record that important new ore bodies were discovered.

In ten minutes we reached a place where seven or eight tunnels intersected.

Morgan tried to set a direct course, but the tunnels intersected and cut back so often that he gave it up.

In 1960 these tunnels intersected the Crombouke seam, allowing and two more faces to be opened for production.

As Lachley paralleled the invisible Thames, other tunnels intersected the one he'd entered.

A tunnel driven straight into the cliff would eventually intersect every different type of rock found in the canyon.

The tunnel curved to the right and then intersected with another.

"Maybe this tunnel intersects a cave, and we can follow it to the surface where it's light."