[Skip to content]
ISS053-E-134166
Browse image
Resolutions offered for this image:
4928 x 3280 pixels 720 x 480 pixels 4928 x 3280 pixels 640 x 426 pixels

MAP LOCATION
latitude/longitude of image
Spacecraft nadir point: 43.6° N, 116.0° W

Photo center point: 40.5° N, 113.0° W

Nadir to Photo Center: Southeast

Spacecraft Altitude: 213 nautical miles (394km)
Click for Google map
IMAGE DETAILS
features and other details
CAMERA INFORMATION
information about camera used
ALL DOWNLOAD OPTIONS
additional formats
Width Height Annotated Cropped Purpose Links
4928 pixels 3280 pixels No No NASA's Earth Observatory web site Download Image
720 pixels 480 pixels Yes Yes NASA's Earth Observatory web site Download Image
4928 pixels 3280 pixels No No Download Image
640 pixels 426 pixels No No Download Image
Other options available:
Download Packaged File
Download a Google Earth KML for this Image
View photo footprint information
Image Caption: Bonneville Salt Flats

An astronaut aboard the International Space Station (ISS) focused a camera lens on the Bonneville Salt Flats of northeast Utah—the light-toned, patchy feature in the middle of the image. The flats are famous for being one of the flattest places on Earth, and racing enthusiasts flock to the region each year to watch new attempts to set land-speed records.

East of the Bonneville Flats lies the growing urban area around Salt Lake City, which is barely visible to astronauts during the day due to the low contrast with the surrounding mountains. In contrast, the colorful waters of the Great Salt Lake stand out against the desert landscape.

The Bonneville Salt Flats are remnants of a large lake that inundated much of Utah between 14,000 and 32,000 years ago. The greatest extent of ancient Lake Bonneville was about 520 kilometers (320 miles) long and 220 kilometers (130 miles) wide. The lake was fed by glacial melt water during the spring and summer seasons of the most recent glacial period. Since Lake Bonneville had no outlet, that water eventually evaporated in place and left behind white salt minerals.

From the vantage point of the ISS, landscape patterns reveal the intermingling of older geologic formations and more recent landforms in this region. The relatively young (in geologic terms) Bonneville Salt Flats are located within the Basin and Range Province, a region that formed from the stretching of EarthÂ’s crust by massive tectonic forces over the past 17 million years. At the top left, we see a different style of geology: the Middle Rocky Mountain region, separated by the active Wasatch Fault zone. This fault zone has violently disrupted the region with at least 22 large-magnitude earthquakes in the past 6,000 years.