I may be biased (ok, I am biased) but I grew up in Amarillo, Texas. About 180000 population. Home of what was the world's largest cattle auction. While granted the beef there is likely not grass fed, it is in abundance and good. Try either Cattle Call or Big Texan (home of the 72 oz steak, free if eaten in an hour). While the city is not on par with places like NYC for an overabundance of things to do, there is still lots to do both in and close to Amarillo. Palo Duro Canyon is about 20 miles away and is like a smaller and less developed Grand Canyon. You can get off the beaten paths to camp pretty easy with lots of hiking trails. Also close is the Cowboy Breakfast which is served on the rim of the canyon from a chuckwagon. If you are traveling by highway, I-40 goes right through Amarillo. A bit of the old west still exist there.