Explore the ancient geological forces that shaped Joshua Tree's iconic rock formations and the stark beauty of its two colliding deserts.
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A Billion Years of Sculpted Stone
This series, Ancient Earth, Sculpted Rocks, explores the geological story behind Joshua Tree's extraordinary rock formations — from their deep origins to the forces…
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1
Where Two Deserts Collide at Altitude
Joshua Tree National Park sits right on the boundary where two North American deserts meet, and the dividing line comes down to elevation.
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2
Molten Rock That Never Saw Daylight
Every massive boulder and towering monolith scattered across this landscape started as liquid rock miles underground.
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How Corners Became Curves Underground
The rounded boulders stacked throughout this landscape were actually sculpted while still buried.
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4
Living Faults Beneath the Desert Floor
The San Andreas Fault, one of the most studied tectonic boundaries on Earth, runs just south of Joshua Tree National Park and is visible from Keys Point as a distinct…
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5
Named Rocks and Their Strange Stories
Skull Rock earned its name from two hollow eye-socket cavities carved by chemical weathering, where rainwater collected in small depressions and slowly dissolved the…
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