The Sacketts 09 Mojave Crossing

In Mojave Crossing, Louis L'Amour takes William Tell Sackett on a treacherous passage from the Arizona goldfields to the booming town of Los Angeles.
Tell Sackett was no ladies' man, but he could spot trouble easily enough. And Dorinda Robiseau was the kind of trouble he wanted to avoid at any time--even more so when he had thirty pounds of gold in his saddlebags and a long way to travel. But when she begged him for safe passage to Los Angeles, Sackett reluctantly agreed. Now he's on a perilous journey through the most brutal desert on the continent, traveling with a companion he doesn't trust . . . and headed for a confrontation with a deadly gunman who also bears the name of Sackett.
From the Paperback edition.