Bears Ears Discovery: Chacoan Great Roadways

The heart of Chaco Canyon lies in the intermittent "Chaco Wash," which runs east - southeast to west - northwest along the San Juan River and then north to south through the canyon.Bears Ears Discovery: Chacoan Great Roadways 348271061025576715.jpg The north side of the canyon consists of towering sandstone cliffs topped by broad, slippery terraces. The south side is less dramatic, however the scale of the Chaco world is even higher, stretching as far as the San Juan River and the Rio Grande Valley. Big houses lie on the north and south sides along with on the east and west sides. The 2,500-square-kilometer research study location is located between the San Juan River and the Rio Grande Valley in the southern part of the Chaco Canyon region.

Chaco Canyon: Perfect Climate for A High Altitude Observatory

The Chaco Canyon area is also identified by impressive weather extremes, and the regional environment can vary hugely from years of plentiful rainfall to extended droughts. Freezing years in the region typical less than 150 days and documented temperature levels range from -38 to + 40 degrees. Fahrenheit (-40 to -50 degrees Celsius).Chaco Canyon: Perfect Climate High Altitude Observatory 7631310132224813.jpg The exact reason for extreme weather patterns in the area in current centuries is not unknown. There are other parks with cold and heat, but Chaco Canyon has experienced some quite remarkable extremes in the past. Temperature levels changed between 40. 0 ° & deg; C and frequently over 35 ° & deg; C. In muggy summer seasons, temperature levels fluctuated approximately 80 ° & deg; C, and Chaco visitors might have experienced refreshing moments. In summertime the temperature level can vary from -40 to + 40oF (-0. 5 to -3. 6 ° & deg; C), with daily variations typically surpassing 35 ° & deg; C. The high desert landscape of Chaco taped a typical yearly rains of 8 inches, and the canyon experienced 120 frost-free days - usually, but that can differ from year to year by up to 30 days. Here, too, rainfall was only 22 cm per year, with large variations from year to year. Unstable tropical air from the Gulf of Mexico moved to the southwest, dropping as much as 1. 5 cm a year in summertime and as little as 0. 2 cm in winter season. Rainfall evaporated rapidly and strike the ground, producing streamers noticeable in storm cloud. Rainfall might have been locally restricted in much of New Mexico, however at one end of the canyon it was drizzling and five miles east the sun appeared in a blaze of rainbows. The damp air also produced cumulus clouds and dramatic thunderstorms, which enriched the visibility and brought much - needed - moisture to the plants and animals living here.