Imagine sitting in a basket dangling thousands of feet above the ground drilling a hole into the side of mountain. Then you have to stuff that hole with dynamite and get out of the way before it explodes. This dangerous work was just part of the job for the men who built the Transcontinental Railroad. Lively language, historical photos and illustrations, and primary accounts help readers understand the dangers the workers faced every day while building the Transcontinental Railroad. Meets Common Core critical thinking standards, and provides strong ties to social studies standards on westward expansion.