Any of various old Spanish units of length used in Latin America and the Southwestern United States, equal in different localities to between 31 in and 34 in (78.7 cm and 86.4 cm); e.g., a unit equal to 33.3333 in (84.666 cm) in Texas, to 33.372 in (84.764 cm) in California, to 33.00 in (83.82 cm) in Arizona and New Mexico, and to 32.9931 in and 32.9682 in (83.802 cm and 83.739 cm) (among others) in Mexico. For other values, see ASCE (1954).