Ciénega

A ciénega (also spelled ciénaga) is a wetland system unique to the American Southwest and Northern Mexico. Ciénagas are alkaline, freshwater, spongy, wet meadows with shallow-gradient, permanently saturated soils in otherwise arid landscapes that often occupy nearly the entire widths of valley bottoms. That description satisfies historic, pre-damaged ciénagas, although few can be described that way anymore and incised ciénagas have become common. Ciénagas are usually associated with seeps or sp...