“This is a book about the US-Mexico border wall and immigration policy, but more importantly it is about the land, wildlife, and people that have found themselves at the front lines of a turning point in North American history…” — from Continental Divide: Wildlife, People, and the Border Wall

We first wrote about this book back in 2012. It’s still the only book we know of that tackles the ecological implications of the single most dramatic part of the United States’ immigration policy — the ongoing construction of a wall along our border with Mexico. Krista Schlyer’s Continental Divide: Wildlife, People, and the Border Wall makes it clear what’s at stake in the borderlands. This region contains a number of rare ecosystems, some of the last undeveloped prairies on the continent, along with habitat and migration corridors for some of North America’s most imperiled species.

So what happens when you build a wall?

Mule deer and the border wall, Arizona

“A barrier like a mountain can create a desert. But what is the impact of the sudden arrival of a great wall within a desert that is experiencing rapid warming and prolonged draught conditions?” — Krista Schlyer

For more on this one-of-a-kind book, here’s a short film clip:

With Continental Divide, Krista Schlyer, wielding pen and camera with equal grace, takes her place as one of the staunchest advocates of the battered, contested, and sublimely beautiful territory we know as the US-Mexico borderlands.” — William deBuys

Green jays in the Audubon Sabal Palm Preserve, Brownsville, Texas.

“The wall now covers only about one-third the length of the border, undercutting the ecological integrity of the borderlands, but not fully severing it. What becomes of the natural communities of the borderlands depends on what happens next.” —Krista Schlyer

We’ll be writing much more about the global reach of the Land Library’s books in the days ahead. To learn much more about the Rocky Mountain Land Library and our wide-ranging collection, be sure to visit our current Kickstarter page!


The Rocky Mountain Land Library’s long-awaited Kickstarter Campaign is LIVE! Help bring books, people & programs to Colorado’s Buffalo Peaks Ranch. With your support we will transform a historic high mountain ranch into a residential library devoted to land, community, and the many positive ways we can all move forward together.

But first, CLICK HERE and you’ll find out much more. Learn how you can be an important part of this land-inspired, book-loving grassroots project!



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