Indigenous

A winding dirt road passes through a grassy hillside under a blue sky.

Tijuana River Watershed Reserve

The Tijuana River Watershed bridges several parks in the Tijuana-Playas-San Diego-Chula Vista regions of the Californias. Border Field State Park in BLANK and Friendship Park in Playas—famously visited by Pat Nixon in YEAR—is perhaps the definition of what a park should or could be.tion to the park

A pink cactus flower blooms in the foreground of a desert landscape, with green hills, distant mountains, and a cloud-filled blue sky in the background.

Coronado/Sky Islands

Though small in size, Coronado National Memorial offers one of the most awe-inspiring views of the entire ecology of the Arizona-Sonora borderlands.

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