John wanted to see this observatory while we were in Texas, he just was not sure when or how we would fit that in. Yesterday, when we decided to take a short drive into the Davis Mountains, he suddenly realized that we were driving very close to the observatory and might as well stop and check it out. We stopped and signed up for a tour. Fortunately, it being spring break week, a lot of the volunteers were gone and the research astronomers were giving the tours. Our guide had worked there at least 30 years and had plenty of information to share with us .After a lengthy explanation by him of the different telescopes and how they are used at the observatory, we left the visitors center to drive up to one of them on top of the mountain. At the building of the 107 inch mirror telescope our guide had us climb up 70 steps to the floor where it is located.