canyons, oceans, volcanoes, mountains, glaciers
All those found in the US southwest. For example, the Colorado Canyon as well as most canyons located in California, Nevada, Utah, Arizona, New Mexico and Texas.
Western yarrow or Achillea millefolium L. var.occidentalis is found in the western US and Canada.
They are found in the eastern US.
The southwest United States is home to deserts and canyons.
Rocky Mountains
the northern/western hemispheres.
Landforms in the Western region of the US include the Rocky Mountains, Sierra Nevada, Cascade Range, and the Great Basin. This region is known for its diverse landscapes, including deserts, mountains, canyons, and coastal areas. The Western region is also home to iconic national parks such as Yellowstone, Grand Canyon, and Yosemite.
pedocal
because the western us is part of the pacific plate
They are called "Cañones". There are two in Mexico: The Cañon del Sumidero in the state of Chiapas and the Cañon del Cobre in the state of Chihuahua. The Cañon del Cobre is bigger, deeper and in some places more spectacular than the US Great Canyon.
Someone can find more information about canyons from a number of websites such as the National Park Service website. The website has detailed information about various canyons located throughout the US.