A great milestone for the Southwest has now happened--Mexico became independent from Spain in 1822; Brué's map is one of the earliest to reflect this change. It is also notable in being the first published map to name the Sacramento River of central California. For the Southwest there is no progress shown over earlier maps. Note that Tucson is spelled "Tubso". Brué (1786-1832) was a publisher in Paris and Geographe du Roy and Geographe de Son Altesse Royale Monsieur Conte d'Artois.