Quick Links to Special Grand Canyon Topics
Canyon Sketches eMagazine Home Page
Canyon Sketches are short, timely and newsworthy updates about Grand Canyon's natural, cultural and recreational resources. They highlight the ongoing work that Grand Canyon's Science and Resource Management staff does to monitor, inventory, restore, and rehabilitate park resources. The Canyon Sketches eMagazine is designed to provide specific information on resource challenges and Science and Resource Management activities. Read more...
A Biologist’s Biologist: Remembering Eric York
Grand Canyon National Park biologist Eric York unexpectedly passed away in the fall of 2007. Learn about Eric’s research on the park’s mountain lions and share in our remembrance of this great man. Park staff honor Eric each day by carrying on his research, and by sharing his passion for big cats, wildlife and wild places.
Mountain Lion Research at Grand Canyon
In 2003, National Park Service wildlife biologists at Grand Canyon National Park initiated a radiotelemetry study of mountain lions in and around the park. The purpose of this study is to gather information about lion behavior, including predation habits, reproductive activity, habitat selection, and other behaviors.
California Condors at Grand Canyon
Today, the California condor is regarded as one of the rarest birds in the world. By the 1980's fewer than two dozen condors lived in the wild. Grand Canyon National Park has participated in the condor reintroduction program with encouraging results, making the park one of the easiest places to view California Condors...
Exotic Tamarisk Management
Tamarisk reached the Grand Canyon area during the late 1920s and early 1930s, becoming a dominant riparian zone species along the Colorado River in 1963. Learn what the park is doing to control and remove tamarisk in order to allow native vegetation to recover.
Grand Canyon Seeps and Springs Study
The Seeps and Springs Study inventories the biotic characteristics of South Rim springs and establishes a biologic baseline against which changes can be measured. From this data scientists hope to gain an increased understanding of riparian (streamside) habitats and thus protect Grand Canyon's seeps and springs from possible future impacts.
Grand Canyon Natural Sounds
Natural sounds are an important part of Grand Canyon National Park. Rustling winds in the canyons and the rush of waters are the heartbeat and breath of some of our most valuable resources.
Biological Soil Crusts
Soil Crusts retard erosion by wind and water, help retain soil moisture during dry periods, slow evaporation rates, and enhance seedling establishment. These living crusts are extremely fragile and one footprint can set back development for decades.
Learn more about Grand Canyon National Park's World Heritage Site Designation.
Examine a comprehensive Bibliography of Documents related to Grand Canyon National Park
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