Borderlands examines and shares the rich and complex history of beauty and conflict, cultural differences, colonizations, and clashing ideologies over land ownership across the southwestern United States. 

Through exhibitions, programs and experiences, Borderlands showcases the human stories and landscapes that define this region both before and after the Treaty of Guadalupe Hidalgo, which ended the U.S.-Mexico War and ceded vast territories to the United States, forever changing the map of North America.

Borderlands first began in 2017 as Borderlands of Southern Colorado. Over the coming decades, History Colorado is expanding the initiative in partnership with Ken Salazar, whose family began farming and ranching in the San Luis Valley before Colorado was a state, and who carried the lessons of the borderlands with him through a career as Colorado attorney general, United States senator, U.S. secretary of the Interior, and U.S. ambassador to Mexico.