The jacal is an adobe-style housing structure historically found throughout parts of the southwestern United States and Mexico. This type of structure was employed by some Native people of the Americas prior to European colonization and was later employed by both Hispanic and Anglo settlers in Texas and elsewhere. Typically, a jacal consisted of slim close-set poles tied together and filled out with mud, clay and grasses. More sophisticated structures, such as those constructed by the Anasazi, incorporated adobe bricks—sun-baked mud and sandstone.