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The Imaginary Line: A History of the United States and Mexican Boundary Survey, 1848-1857

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The line dividing the United States and Mexico is invisible, “imaginary,” drawn through shifting sands and changeable rivers. The economic, social, and political issues surrounding this line, however, are all too real, and the line snakes its way through a history of conflict, through questions of definition, maps and claims of ownership, and personal and political gerrymandering.

In The Imaginary A History of the United States and Mexican Boundary Survey, 1848 – 1857 , Joseph Richard Werne sets out to explore this border and the men who drew it. Using a variety of sources, including manuscripts, government documents, contemporary accounts, and memoirs, he creates a map of his own, one that charts the intersection of individual lives, politics, and geography. Werne proposes to revise the common view of the U.S.-Mexican Boundary Survey Commission as directed and funded almost entirely by the United States; the recent release of documents and archived files from the Mexican Boundary Commission allows further study of the Mexican commission’s role and demands recognition of the equal Mexican contribution to the commission’s immense task.

The diverse group of military and civilian surveyors, engineers, and politicians that composed the Joint Commission had to reconcile disparate personal interests and backgrounds, as well as different maps and equipment. Their efforts were of “epic quality” and represent the coinciding cooperation and conflict that describes border relations today. Werne’s study describes their lives and work, their survival of the hostile environment, and their struggles with inadequate funding and government corruption, tying their stories into the approaching civil war in the United States, the rapidly lengthening transcontinental railroad, and political instability in Mexico.

255 pages, Hardcover

First published June 18, 2007

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Displaying 1 - 2 of 2 reviews
Profile Image for Kirk Astroth.
205 reviews3 followers
May 12, 2019
Not a well-written book. Confusing, packed with details and personages I couldn’t keep straight. Best to read the concluding chapter and that’s what you need to know:

The border is vague, was plagued with political intrigue, a commissioner who saw this as an opportunity to travel the West and who was missing for more than a year while he surveyors sweated it out in the deserts with little or no pay. The boundary had to be fixed in the 1890’s and Mexico lost another 320 square miles. Meanwhile the US tried to take over Baja and Hermosillo spurred on by the citizens of Arizona who wanted a beach. The Sonoran Land and Mining Company planned to settle thousands of North Americans along the Yaqui River in order to control Mexican territory. It was considered another Texas “in the making.”

It’s amazing we have an agreed-upon border at all. But don’t waste time reading this book to find out why.
This entire review has been hidden because of spoilers.
Profile Image for David H..
2,538 reviews27 followers
June 10, 2022
Retroactive Review (9 Jun 2022): An interesting look at the US-Mexico border in the years after the Mexican War.
Displaying 1 - 2 of 2 reviews