The correct name is the Museum of the Big Bend (not "Museum Of Big Bend"). It is located at:
104 S 5th St, Alpine, TX 79830
Situated on the campus of Sul Ross State University, the museum showcases the history, culture, and natural heritage of the Big Bend region—spanning West Texas, Northern Mexico, and the borderlands. Exhibits cover Native American archaeology, ranching, border military forts, geology, and contemporary art.