I recently made a trip out west to San Angelo, and had a chance to stop at Fort Concho National Historic Landmark.
The website notes: " Established in 1867, along the banks of the Concho River, Fort Concho was built to protect frontier settlements, patrol and map the vast West Texas region, and quell hostile threats in the area.
"Constructed for the most part of native limestone, Fort Concho consisted of at least forty buildings and covered more than 1600 acres.
"Fort Concho served as regimental headquarters for some of the most famous frontier units like the 4th and 10th Cavalry. Notable military commanders such as Ranald Mackenzie, Benjamin Grierson, and William 'Pecos Bill' Shafter commanded here. Elements of all four regiments of the Buffalo Soldiers were stationed at the post during its active period."
When you visit, you will need to pay a small entrance fee to participate in the tour, which is offered with a guide or alone.
San Angelo has great food, shopping and Fort Concho is just one of the museums the city offers. More informaiton about Fort Concho can be found here.