I can find chuck steak in Brookshire Bro's, Market Basket, HEB, Kroger's and the local grocers. It's a staple in this part of the country. I know that those stores are in parts of East Texas, just don't know how far west they go though.
Mom used to pan-fry it, and then fry potatoes in the grease. She also used to make it into Carne Guisada.