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Near Twentynine Palms in Riverside County, California — The American West (Pacific Coastal)
 

Classic Lines

 
 
Classic Lines Marker image. Click for full size.
Photographed by Duane and Tracy Marsteller, September 30, 2025
1. Classic Lines Marker
Inscription. Nature has sculpted the “classic lines” – cracks and folds – in the rocks, like those found here at Hemingway Buttress. Joshua Tree National Park is a rock climber's paradise. The rough textures of the granite rock and the warm, sunny conditions here make it a very climbable place. When other climbing hotspots are covered in snow Joshua Tree draws climbers from far and wide. More than 5000 climbing routes are described within the park and more are being pioneered.

The climbers' rock formed from molten magma miles below your feet. Squeezed and shaken by earthquakes for millions of years, the granite split and cracked. Mountain uplifting raised the granite close to the Earth's surface. While still underground, water and chemical weathering sculpted the angular granite blocks into their present forms. As the climate grew more arid, erosion exposed the jumbled boulders. Their fantastic shapes have attracted rock climbers from around the world since the 1940s.

photo caption:
Hemingway Buttress offers climbers fine-crack climbs and established descent paths for rappelling. Whimsical route names like Poodles Are People Too, White Lightning, and The Importance of Being Ernest identify seams of the more challenging and popular climbs here.
 
Erected by National Park
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Topics. This historical marker is listed in these topic lists: EnvironmentSports. A significant historical year for this entry is 1940.
 
Location. 34° 1.553′ N, 116° 10.514′ W. Marker is near Twentynine Palms, California, in Riverside County. It is on Park Boulevard 7.8 miles south of Rainbow Ridge Road, on the right when traveling south. Located in Joshua Tree National Park, in a pulloff/parking area on the southbound side. Touch for map. Marker is in this post office area: Twentynine Palms CA 92277, United States of America. Touch for directions.

Regionally, this marker is in Greater Los Angeles and in the Peninsular Ranges. It is also in the American Southwest. Globally, it is in North America, on the Ring of Fire, in the Pacific Rim, in the Western Hemisphere, in the Western World, and in the Anglosphere. Historically, it finds itself in what was once New Spain and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are within 5 miles of this marker, measured as the crow flies: Linked to the Land: Keys Ranch (approx. 0.7 miles away); Barker Dam (approx. 1.9 miles away); Wall Street Mill (approx. 1.9 miles away); Worth Bagley Stone (approx. 2½ miles away); Ryan Ranch (approx. 2.8 miles away); Memorial Fire (approx. 2.9 miles away); Welcome to the Indian Cove Trail (approx. 4.8 miles away); Hardships and Forced Transitions (approx. 4.8 miles away). Touch for a list and map of all markers in Twentynine Palms.
 
Climbers on Intersection Rock image. Click for full size.
Photographed by Duane and Tracy Marsteller, September 30, 2025
2. Climbers on Intersection Rock
They are using traditional rock-climbing methods, which use gear that is removable and leaves no permanent impact on the rock. Routes on this side of Intersection Rock are known as the "Ski Tracks" area.
 
 
Credits. This page was last revised on November 24, 2025. It was originally submitted on November 14, 2025, by Duane and Tracy Marsteller of Murfreesboro, Tennessee. This page has been viewed 50 times since then and 17 times this year. Photos:   1, 2. submitted on November 14, 2025, by Duane and Tracy Marsteller of Murfreesboro, Tennessee.
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Jul. 3, 2026