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Horseshoe 2 Fire, Arizona
This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science. However, more recent observations and studies may have rendered some content obsolete.
The Horseshoe 2 fire, located along the southeastern flank of the Chiricahua Mountains in southeastern Arizona, began on May 8, 2011, at approximately 11:00 a.m. The fire is thought to have been started by human activities. This astronaut photograph illustrates the area (approximately 8,900 hectares, or 22,110 acres) and position of the fire within the mountains on May 15, 2011, as well as an extensive smoke plume extending to the east-northeast over a distance of at least 60 kilometers (approximately 40 miles). As of May 19, 2011, the fire had burned an area of nearly 14,000 hectares (approximately 34,400 acres) of grasses, shrubs, and trees along the mountain slopes.
The Chiricahua Mountains are included within the Chiricahua National Monument located near the borders of Arizona, New Mexico, and Chihuahua, Mexico. Elevations in the mountains range from approximately 900 to 3,270 meters (3,000 to 10,720 feet) above sea level. The higher elevations—known regionally as “sky islands”—allow for biologically diverse plant and animal communities, adapted to cooler and wetter conditions, to survive while surrounded by semi-arid to arid desert conditions at lower elevations.
The image highlights this contrast in environments; pine and oak forest contributes to the dark coloration of the upper slopes and peaks of the Chiricahuas at image center, while the flat, gray to tan surface of Willcox Playa (an interior-draining basin or dry lake) to the northwest is indicative of the adjacent desert environment.
Astronaut photograph ISS027-E-31908 was acquired on May 15, 2011 with a Nikon D3S digital camera using a 200 mm lens,
and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center.
The image was taken by the Expedition 27 crew.
The image in this article has been cropped and enhanced to improve contrast. Lens artifacts have been removed.
The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth.
Caption by William L. Stefanov, NASA-JSC.
Taken May 15, 2011, this astronaut photograph shows the Horseshoe 2 fire in southeastern Arizona.