A Warm Day Friday with Light Winds
Expect breezy southwest winds this weekend as a cold front moves north of the Grand Canyon region. Maximum temperatures cool to seasonal normals from Sunday through Wednesday. More »
Bat Tests Positive for Rabies in Grand Canyon National Park
Public Health Alert, October 2014: A bat recently removed from an area along the Colorado River within Grand Canyon National Park has tested positive for rabies. Any persons having physical contact with bats in the park, please follow this link. More »
Grand Canyon National Park scrublands are more precisely called desert scrub communities.
A Mohavean desert scrub community extends from the Grand Wash Cliffs in extreme western Grand Canyon to near the Colorado River’s confluence with the Little Colorado River. It is typified by warm desert species such as creosote bush and white bursage. Frost-sensitive species more characteristic of the Sonoran Desert such as brittle brush, catclaw acacia, and ocotillo can also be found along this stretch of the river. Species such as mariola, western honey mesquite, and four-wing saltbush, considered typical of Chihuahuan Desert species, also grow here.
Upstream of the Little Colorado River, in Marble Canyon and on the Tonto Platform, species more characteristic of the Great Basin Desert predominate, such as big sagebrush, blackbrush, and rubber rabbitbrush.
Did You Know?
Within the Grand Canyon, the type and abundance of organisms is directly related to the presence or absence of water. The Colorado River and its tributaries, as well as springs, seeps, stock tanks and ephemeral pools provide oases to flora and fauna in this semi-arid southwest desert area.