The first thing that readers will notice about this book is that it is the result of a very thorough examination of the railroad's construction. The extensive research that Pyne undertook in order to present this comprehensive story is commendable.- Bill Hough (NRHS Bulletin) Pyne's work captures the challenges the railroad builders faced, allowing the reader to appreciate the enormity of the undertaking and what success meant in transforming maritime travel between the Atlantic and Pacific Oceans.- Michael K. Bess (Technology and Culture) Pyne provides detailed analyses of the immense engineering challenges of the initial construction phase, particularly on the Atlantic side, the many twists and turns of the financing and commercial operations of the line in both New York and Panama itself, and the increasingly conflictive relations between the railroad concessionaires and the Panamanian and Colombian authorities.- Lowell Gudmundson (Latin American Research Review)