The otherworldly geology of the Vásquez rocks

0 0 3 minutes read

The otherworldly geology of the Vásquez rocks

Editor’s note: Today’s story is the answer to September’s puzzle.

Several of the outcrops at the Vasquez Rocks Natural Area in Southern California jut out of the arid landscape of the Soledad Basin at notable angles. Geologists estimate that the tilt of the sedimentary rock strata found in the area averages 50 degrees, steep enough that many of the otherworldly formations appear to point toward the stars.

This is appropriate, in a way, because rocks have served as one of the trip to the stars Franchise favorite set pieces from the show’s inaugural season, when Captain James T. Kirk scrambled across the jagged terrain during an iconic battle with a member of a reptilian alien species.

Viewed from space, the Vasquez Rocks are considerably less dramatic, but are clearly shown as gray bands located between mountain ranges in these false color (left) and natural color (right) images captured by the OLI (Operational Land Imager) on Landsat 9. The false color view (bands 6-5-4) incorporates near-infrared and shortwave observations that accentuate differences in landscape vegetation compared to the image in natural color. to the right.

The Vasquez Rocks did not start out pointing skyward. When they were forming 25 million years ago, the sediments spread in alluvial fans: cone-shaped deposits that develop as fast-moving streams that flow onto relatively flat plains. The sediment likely had not traveled very far, and much of it had eroded from nearby highlands. Over time, the alluvial fan deposits were buried and cemented into thick layers of sandstone and conglomerate rock.

Over millions of years, the region was reshaped by the interaction of tectonic plates just to the east. Two plates rub against each other along a boundary that includes the San Andreas Fault, a strike-slip fault where the North American plate moves to the southeast and the Pacific plate moves to the northwest, contributing to powerful tectonic forces that spread throughout the region.

Over time, this tectonic activity caused the uplift and deformation of the Soledad Basin, with sedimentary layers gradually tilting, folding, and rotating. Once exposed at the surface, millions more years of erosion and weathering further sculpted the formations, removing the softer material and leaving the tougher sandstone and conglomerate fins and ridges that amaze visitors today.

The rock formations represent distant moons and planets in several others trip to the stars episodes and Vulcan, Spock’s home planet, in two trip to the stars cinema. Other productions have also highlighted the Vásquez Rocks. They appear in dozens of other television shows and movies, including the science fiction series. western world, For all humanityand Galactic Battlestar.

NASA Earth Observatory images taken by Michala Garrison, using Landsat data from the US Geological Survey. Story by Adam Voiland.

July 28, 2026: False color (bands 6-5-4)

This natural color image shows the same area, but there is less difference in colors between higher and lower elevation vegetation. Most of the features in the image are shades of brown.

July 28, 2026: natural color

Los Angeles County Department of Parks and Recreation, Vasquez Rocks Natural Area. Accessed September 4, 2026.
Directors Guild of America (2003, November) Vasquez Rocks. Accessed September 4, 2026.
Hendrix, E. & Ingersoll, R. (1987) Tectonics and alluvial sedimentation of the Upper Oligocene/Lower Miocene Vásquez Formation, Soledad Basin, Southern California. GSA Bulletin98(6), 647-663.
Los Angeles Times (2016, September 8) How Vasquez Rocks, the former Los Angeles outlaw hideout, became ‘Star Trek’s’ favorite alien landscape. Accessed September 4, 2026.
NASA (September 8, 2021) 55 years ago: Star Trek debuts and begins a long-lasting relationship with NASA. Accessed September 4, 2026.
Painter, D. (2023, July 28) Didn’t I see these rocks in the movies? Yes, of course: they are the Vásquez Rocks. Accessed September 4, 2026.
Santa Clarita Valley Historical Society, via YouTube (February 23, 2026) Vasquez Rocks, California | Natural history. Accessed September 4, 2026.
ScreenRant (May 26, 2024) All 10 Star Trek episodes filmed at California’s Vasquez Rocks. Accessed September 4, 2026.
SCVTV (2016) Land of the Sunny Slopes: A History of Vasquez Rocks. Accessed September 4, 2026.
Space.com (2026, September 4) Trekkies honor ‘Star Trek’ 60th birthday with fan events, special screenings and world-record Vulcan salute. Accessed September 4, 2026.