Journey of the Mountain Man by William W. Johnstone
Blood On The Range
Smoke Jensen couldn't have cared less that a range war had erupted in Montana. But his cousin Fae was stuck right in the middle of a hundred-gun showdown that was about to explode in bullets and blood.
When Smoke trapped on his Colts and went to Fae's aid, he knew the deck was stacked against him. Even when he was joined by four old friends, it looked like it was going to be his final stand. But if anyone could buck the odds, it was Smoke Jensen, the last mountain man.