The Mustangs of Los Colinas
I saw the sculpture below on my first visit, and I took some more pictures in 2006.
Los Colinas is a planned development where the sculptures are displayed. It consists of high-rise office towers, retail centers, upscale residences and apartment complexes, and golf courses in Irving TX.
According to the Irving Chamber of Commerce and Museum websites:
"Those galloping creatures represent the world's largest equestrian sculpture, the Mustangs of Las Colinas, captured in bronze as they move across a granite stream at Irving's Williams Square. African wildlife artist Robert Glen installed this spectacular piece in 1984, as a memorial to the heritage of Texas. The sculpture recognizes that "Texas is not only a geographical place on this continent, but that it represents a distinctive spirit and way of life of a people who are committed to the freedoms of action, initiative and expression for each individual man and woman as no other culture before has exhibited."