JENNERSTOWN, Pa. (AP) -- A 50-mile bus tour through Somerset County takes visitors from the temporary Flight 93 memorial site to a farm where nine men were safely freed from a flooded mine in 2002.

The somber journey through Somerset County has become a popular tourist attraction in recent years, with thousands of people making the excursion through the Laurel Highlands.

At the temporary memorial near the site where Flight 93 crashed on Sept. 11, 2001, visitors see a tall fence covered with mementos and rows of wooden benches with the names of most of the 33 passengers and seven crew members who died when the plane crashed near Shanksville.

Passengers aboard United Airlines Flight 93, which was en route from Newark, N.J. to San Francisco on Sept. 11, apparently rushed the cockpit, foiling the four hijackers' plan to crash the plane into the White House or Capitol building.

Bob Musser, a volunteer, greets the tourists and gives them details about the airplane, its passengers and the $58 million permanent memorial that is to be built on the site.