Edison Marshall 
Shepherds of the Wild [EPUB ebook] 

Hugh Gaylord, spoiled young heir to more wealth than is good for him is shamed into going on a 'he-man’ adventure, looking to make something more of himself than a dissolute, drunken playboy. What he did not look for, but what he found, was a hard job as shepherd, dangerous enemies and the affection of a Rocky Mountain Lady who he worked for. In addition, he learned to understand the code of the shepherd, to preserve and protect his charges.