Go deeper into the history of each park with scholarly articles and essays from Oxford University Press, freely available for the centennial year.

The Journal of American History

Explorers, Traders, and Slavers

Forging the Old Spanish Trail, 1678–1850.

Joseph P. Sanchez...makes it clear that his monograph is not the definitive history of Latino frontiersmen who opened the first trails between New Mexico and California.

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