The March of the Mormon Battalion in 1846 from Council Bluffs, Iowa to San Diego was long over before the participants themselves and historians began to realize what a major undertaking had just taken place. The war with Mexico, the relocation of the Mormons and the discovery of gold in California all served to over-shadow the momentous accomplishment. Much has been written to preserve and celebrate this contribution to the expansion of our nation. The March through New Mexico traverses such a desolate, harsh and forbidding land that details of this stretch are often glossed over or ignored. New Mexico is a large state, geographically diverse, with a climate which ranges from desert to alpine. Even today much of the state traversed by their march is remote and largely accessible only by four wheel drive vehicles. George Hackler, a life long resident of southern New Mexico covers the history of the March with his intimate knowledge of the landscape to produce a detailed tracing of the route.The story is told with over sixty color photographs and forty topographical maps to help the reader follow along with and see what the the volunteer soldiers saw so long ago. The story pulls together tedious ground surveys done by dedicated researchers not here-to fore available to the general public.