The Wonderful Country by Tom Lea

This is perhaps my all-time favorite "western" novel. Set on either side of the El Paso Del Norte border (El Paso, Texas on the USA side), featuring an American who has grown up in Mexico and is a combination ranch hand/pistolero for a Mexican ranchero. It's the tail of his trip north of the border on business for the ranchero, and his awakening to his "homeland" while recuperating from a broken leg that keeps him from returning to Mexico. His horse, Lagrimas (Spanish for "Tears") is featured throughout, showing the bond a man has with his, very special, horse. This is somewhat less action-oriented, and more "adult" than your typical Louis Lamour western, but should satisfy even the typical L.L. fan and then some. I first read this as a teenager (14-15), and have re-read it many times over the years. I may buy another copy for each of my three sets of grandkids, for part of their education.