The book "Breakthrough in the wilderness. History of the conquest of the Wild West from the travels of Cabeza de Vaca to the first descent of the Colorado Powell, and the completion of the construction of the Union Pacific railroad. With a special description of the exploits of the trappers" by Frederick Samuel Dellenbaugh. This book is a rich historical record of events and discoveries in the conquest of America's wild nature. From the exciting adventures of trappers to the huge engineering projects of communication between the west and the east of the country, the book tells about important pages of the conqueror's history. The author reveals in detail the ways and difficulties in the wilderness, showing the courage and bravery of people who paved the way through the wilderness. The story line, filled with exotic events, is interwoven with vivid descriptions of natural landscapes and the inner states of the characters. "Breakthrough in the Wilderness" not only reflects history, but also captivates the reader with exciting adventures and unique illustrations that complement the imaginary feeling of that time and place.