BARRE, Vt. (AP) — A tribute to thousands of rescue and recovery workers who labored in the ruins of the World Trade Center is taking shape in Vermont, where workers are chipping at and chiseling slabs of granite that will be installed this spring at the national Sept. 11 memorial.

The new area with a path flanked by stone monoliths will also honor those sickened or who died from exposure to toxins after the towers fell.

One of the six monoliths weighing between 15 and 17.5 tons (13,600 to 16,300 kilograms) was nearly complete last week at the Rock of Ages granite manufacturing company in Barre, Vermont, a small community that has a long history of quarrying and stonecutting and dubs itself the granite capital of the world.

The Associated Press last week was given access to the work in progress. In a vast industrial building, workers fine-tuned the first rough-hewn triangular monolith measuring 8 by 12 feet (2.4 by 3.6 meters). It's composed of sloping layers of thick granite slabs that resemble a rock bed more than 3 feet (1 meter) tall at one end. One worker used a torch to finish the surface, while officials from New York's Sept. 11 memorial watched in the dusty, loud space.