This novel was the basis for the 1935 movie of the same title, which starred Randolph Scott as Brett Dale (though it's Milt Dale in the book). This Zane Grey western is considered to be among the top five he wrote, and it was a massive bestseller when it was initially published back in 1920. It's filled with action, suspense, high drama, great characters, and all the western tropes Zane Grey instituted for the genre. If you haven't read Zane Grey, you haven't read westerns