An astronaut aboard the International Space Station (ISS) recently captured a stunning image of the Green River meandering through red rock canyons in eastern Utah, USA. The image highlights the bend known as Bowknot Bend, a prominent feature of Labyrinth Canyon, north of Canyonlands National Park.
Named by John Wesley Powell during his 1869 expedition, Bowknot Bend is known for its distinctive loop where the river bends back on itself. Located about 25 miles west of Moab, Utah, this 12-mile loop is almost entirely reconnected, separated by only a narrow strip. Over time, river erosion will cut through this narrow passage, creating a dead branch or abandoned meander.
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Formation and erosion
- The high contrast of the ISS image highlights the 3D perspective of the 300-meter-deep Labyrinth Canyon.
- Similar to the Grand Canyon, Labyrinth Canyon was formed by the uplift of the Colorado Plateau, causing the Green River to cut through layers of rock over geologic time.
- Labyrinth Canyon is not only a geological wonder, but also a historical site with inactive uranium mines, such as the Ellen Mine, built into its walls.
- These mines were established to extract uranium ore deposits found in ancient river sandstones.
- Bowknot Bend is a popular destination for outdoor enthusiasts.
- Hiking, canoeing, and rafting are popular activities, allowing visitors to explore the many caves and cavities within Labyrinth Canyon.
- The Bowknot Bend Isthmus provides a unique lookout point for hikers.
