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Letchworth State Park is a 14,427-acre (5,838 ha) New York State Park located in Livingston County and Wyoming County in the western part of the State of New York. [1] [5] The park is roughly 17 miles (27 km) long, following the course of the Genesee River as it flows north through a deep gorge and over several large waterfalls. [6]
The Hudson Canyon proper is located about 160 km (99 mi) east of the mouth of the Hudson River off the New Jersey coast. Its walls rise 1.2 kilometres (0.75 mi) from the canyon floor, making it comparable to the Grand Canyon, whose cliffs are over 1.61 kilometres (1.00 mi) deep and 640 km (400 mi) long. It is the largest known ocean canyon off ...
Grand Canyon National Park: Arizona: 1979 75; vii, viii, ix, x (natural) The Grand Canyon is a spectacular gorge that the Colorado River has carved during the last six million years while the Colorado Plateau was uplifted. The canyon is 277 mi (446 km) long and up to 18 mi (29 km) wide. It reaches depths of up to 0.93 mi (1.5 km).
The Cardenas Basalt and Dox Formation are found mostly in the eastern region of Grand Canyon. The Shinumo Quartzite, Hakatai Shale, and Bass Formation are found in central Grand Canyon. The Unkar Group accumulated approximately between 1250 and 1104 Ma (1,104 million years ago, 1.1 billion).
The Cardenas Basalt, also known as either the Cardenas Lava or Cardenas Lavas, is a rock formation that outcrops over an area of about 310 km 2 (120 mi 2) in the eastern Grand Canyon, Coconino County, Arizona.
The Dox Formation, also known as the Dox Sandstone, is a Mesoproterozoic rock formation that outcrops in the eastern Grand Canyon, Coconino County, Arizona.The Dox Formation comprises the bulk of the Unkar Group, the older subdivision of the Grand Canyon Supergroup.
Dolomite and limestone dominate the Bass Formation in the central part of the Grand Canyon, while the sandstone, conglomerate, and argillite dominate the Bass Formation in the eastern part of the Grand Canyon. The Bass Formation typically becomes generally finer grained toward the top. [2] [5] [6] [7] Volcanic ash layers occur in the Bass ...
Grand Canyon Synod Arizona, Southern Nevada. Deborah K. Hutterer [20] 38,182 [15] ... Metropolitan New York Synod New York City, Hudson Valley, & Long Island: Paul ...