GUERRERO, formerly Tixtla, the chief town of the state of Guerrero, Mexico, is situated at an elevation of about 5000 feet in a narrow and unhealthy valley in the Sierra Madre, 28 miles from the coast and 150 miles S.W. of Mexico. Mining is carried on, but not to any great extent, and coarse cloth is manufactured. The population in 1869 was 6501.