Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
DigitalGlobe Announces SpaceNet Challenge Round 2 Results and Future Challenges
WESTMINSTER, Colo. - DigitalGlobe, Inc. (NYSE: DGI), the global...
Geospatial Companies Join Forces to Fight Wildfires
Insitu, FireWhat and Esri partnered to help aerial reconnaissance...
Excelitas Technologies Celebrates 20 Years of Continuous, Failure-Free Operations of its Rubidium Atomic Frequency Standard (RAFS) Aboard On-Orbit GPS-IIR Satellite
WALTHAM, Mass. – Excelitas Technologies, a global provider of...
Lockheed Martin Will Build New Space Instrument Focused on Vegetation Health and Carbon Monitoring
PALO ALTO, Calif. – Scientists will get a better...
FARO Introduces FocusS 70 Laser Scanner
Lake Mary, FL - FARO® (NASDAQ: FARO), the world’s...

Click on the image to enlarge.

Over thousands of years, retreating glaciers scoured and carved out much of the basin that now holds Lake Michigan. But in some parts of the lake, patches of erosion-resistant rock still protrude above the water. A cluster of small islands in the far northern reaches of the lake includes the Beaver Island archipelago.

In this Landsat 8 image, which offers a broader view, Beaver Island and the other islands are shown in the context of the great lake. Dense forests, swamps and sandy beaches dominate the landscape. Offshore, deeper waters appear dark blue, while shallow areas are turquoise.

The islands are composed of limestone bedrock covered with a layer of sand and gravel (glacial “till”). Except for Beaver Island, the largest of the group, the islands are unpopulated. About 700 people live on Beaver Island, mainly in a small town on the northern part of the island. A Native American community survived on Garden Island until as recently as the 1900s, but the size of the community dwindled until the last remaining resident died in the 1940s.

The shallows around Garden and Hog islands contain numerous parallel rock ridges interspersed by deeper channels. These reef areas offer ideal spawning ground for various species of fish, notably lake trout and perch. Federal and state resource managers have attempted to replenish depleted lake trout populations by stocking northern Lake Michigan waters.

Image courtesy of NASA and U.S. Geological Survey.

Read the full story.

Comments are closed.