McDonald Observatory, Ft. Davis, TX

We return to McDonald Observatory, which is located on top of Mount Locke, for the daytime program. The McDonald Observatory is owned by the University of Texas. The Observatory operates four telescopes, the Hobby-Eberly, the Harlan J. Smith, the Otto Struve and a large format imaging telescope. We get to visit two of these enormous telescopes.

We then visit the viewing site for the Marfa Mystery lights.  We don't see any, but then it's still daylight. We return to the state park for the night.