The Texas Triangle is a model of economic growth and an emerging power in the global economy. The Texas Triangle is an area of Texas designated by four key Texas metropolises. These metropolises connected by a straight line in the shape of a triangle designate the Texas Triangle area. The triangle is formed by the north point, being Dallas - Fort Worth metroplex to the southeast point, being Houston Metroplex, and to the southwest (third) point, being the San Antonio Metroplex then back to Dallas -Fort Worth forming a triangle (see visual). Contained inside the triangle is the fourth metropolis, Austin Texas. Also contained within the Texas Triangle, are the I 35 corridors extending from Dallas – Fort Worth to Austin, and from Austin to San Antonio. This triangle represents some of the most densely populated urban areas in the state as well as containing some of the largest economic resources in the Lone Star State.