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Join a Park Ranger for a one-of-a kind program. Learn about the Native Americans who lived on the Texas Plains and used Alibates Flint for 13,000 years. Convoy to the trailhead for a moderate 2 mile hike that includes a climb of 170 ft in elevation.

Diamorpha growing atop a granite monadnock.

The Ohio & Erie Canal made Peninsula a busy industrial town and popular overnight stop for canal travelers. Today visitors can stroll through the historic downtown, shop, and dine. Lock 29 Trailhead is a popular, often crowded access point for the village, Towpath Trail, Cuyahoga Valley Scenic Railroad, and Cuyahoga River Water Trail. On the towpath, travel 2.3 miles north to the village of Boston. About a mile south is Deep Lock and connecting trails to old stone quarries.

Granite Quarry Overlook offers views of the Blue Ridge area and Sauratown Mountain Range, as well as the Mount Airy Granite Quarry, the largest granite quarry in the world.

A sacred site. Large granite boulders treated as guardians of the quarries for centuries. Offerings are often left here prior to quarrying. Please maintain a respectful distance.

Dinosaur fossils have been discovered at or are associated with at least 27 NPS units. Geographically, their finds are concentrated in the parks of the Colorado Plateau, but they have been found from central Alaska to Big Bend National Park in Texas to Springfield Armory National Historic Site in Massachusetts. The most famous site is the Dinosaur Quarry of Dinosaur National Monument, but a rush of new finds since the 1970s has greatly expanded our knowledge.

Alibates flint deposits were used by indigenous peoples of the Texas Panhandle for thousands of years. The flint deposits are within the Alibates Dolomite, a marine unit within the Permian red beds of the Texas panhandle. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

This article answers some questions about fossilized skulls, why they are rare, and why the Carnegie Quarry was so exceptional at preserving them.

Torvosaurus tanneri is a species of theropod dinosaur from the Late Jurassic Morrison Formation of North America. It is known from the Carnegie Quarry at Dinosaur National Monument from a single bone, the humerus. This upper arm bone is more robust and straighter than its more common contemporary, Allosaurus. Torvosaurus was likely the largest theropod in the Morrison Formation.

First Lady Claudia Taylor (Lady Bird) Johnson created the Committee for a More Beautiful Capital. Part of her dream was to "frame the White House in water." Each fountain is made from an enormous slab of granite 18 feet square, nearly a foot thick, and weighing 55 tons. The granite was quarried in Morton, Minnesota, from rock more than 3.5 million years old. These rainbow granite monoliths were a gift of publishing magnate Mrs. Enid Haupt.

Albert Mussey Johnson was born May 31, 1872, into a wealthy Quaker family in Oberlin, Ohio. Albert H. Johnson, Albert's father, was a wealthy banker and financier with investments in railroads and quarries.

Entrance station located on the Utah side of the monument.

The Lyndon Baines Johnson Memorial Grove on the Potomac is a living memorial, surrounded by a grove of white pines and dogwoods bordered by azaleas and wildflowers. The focal point of the memorial is a 19-foot monolith made of sunset red granite quarried 35 miles from President Johnson's Texas ranch home.

The quarrying of catlinite, or pipestone, remains an important cultural tradition for many individuals and Native American tribal nations. After extraction, the pipestone is carved into pipes for ceremonial use and smaller pieces are often carved into other objects. The Pipestone National Monument landscape preserves the history of quarrying, the CCC-ID, and land rights, and continues to protect access to the landscape and its resources for quarrying and ceremonies.

During the 1850s, two local railroads- the Orange & Alexandria and the Manassas Gap- met at Manassas Junction.

The Boston architect, Solomon Willard, was the undisputed builder of the Bunker Hill Monument and performed the job beyond the Bunker Hill Monument Association's expectations.

Ceratosaurus is a genus of carnivorous theropod dinosaur from the Late Jurassic Morrison Formation. It is known from the Carnegie Quarry at Dinosaur National Monument from a single bone, a premaxilla. This bone is diagnostic for Ceratosaurus because, unlike other Morrison Formation theropods, Ceratosaurus has only three teeth in its premaxilla. Much rarer than its contemporary Allosaurus, the top of its snout was adorned with a crest, formed from its nasal bone.

Barosaurus is a plant eater and the least common of all the sauropods (long-necked dinosaurs) found in the Carnegie Quarry. It is similar to Diplodocus, but has a longer neck and shorter tail. The forelimbs of Barosaurus are longer and more slender than those of the Diplodocus. Unfortunately, no one has ever found a Barosaurus skull so those on display are based on the skulls of other sauropods.

The Fossil Discovery Trail is readily accessible from both the Quarry Visitor Center and the Quarry Exhibit Hall.