""The Sky Line Of Spruce"" is a novel written by Edison Marshall. The story is set in the Pacific Northwest during the early 20th century and follows the life of a young man named David Carrigan. David is a surveyor who is sent to map out a new railroad line through the rugged and dangerous terrain of the Pacific Northwest. Along the way, he meets a variety of colorful characters, including a beautiful and independent woman named Joy Gaston. As they...