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  Image: Geographic Location Direction Photo #: ISS052-E-12924 Date: Jul. 2017
Geographic Region: CANADA-O

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  Sandy Lake, Northwest Ontario

Out of thousands of lakes in the glaciated landscapes of the Canadian Shield, the color and size of Sandy Lake attracted the attention of an astronaut flying over on the International Space Station. Located in a remote region of northwest Ontario (north-northeast of Winnipeg), the lake and its milky, mocha-colored neighbors lie within a zone known as the "Clay Plains." Fine clay sediment was long ago laid down here in the beds of glacial lakes (such as Lake Agassiz) during the retreat of North America's continental ice sheet.

Those old sediments now add color to Sandy Lake, Finger Lake, and Rathouse Bay. Many lakes in this region are so shallow that sediment from the lake floor is easily stirred up by currents and wind. Sediment with the strongest coloring, especially along the northeast shore of Finger Lake, is also delivered by small rivers. Sandy Lake and its neighbors are larger than other lakes because they lie on the major Severn River drainage line that flows to Hudson Bay.

Some of the smaller, surrounding lakes (such as Peekwachana) are very dark by comparison because they do not have muddy sediment suspended in the water.

Logging north of Sandy Lake has created a lighter green, straight-edged zone in Opasquia Provincial Park. With one road into the area - and it is only open for about six weeks during winter - the region relies on aircraft transport. Small, fly-in communities can be identified by their airfields (which are easier to spot in the large, downloadable image).

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Images: All Available Images Low-Resolution 482k
Mission: ISS052  
Roll - Frame: E - 12924
Geographical Name: CANADA-O  
Center Lat x Lon: 53.0N x 93.1W
Film Exposure:   N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus
Percentage of Cloud Cover-CLDP: 10
Camera: N6
Camera Tilt: 28   LO=Low Oblique, HO=High Oblique, NV=Near Vertical
Camera Focal Length: 170  
Nadir to Photo Center Direction: NE   The direction from the nadir to the center point, N=North, S=South, E=East, W=West
Stereo?:   Y=Yes there is an adjacent picture of the same area, N=No there isn't
Orbit Number:  
Date: 20170707   YYYYMMDD
Time: 133435   GMT HHMMSS
Nadir Lat: 51.5N  
Latitude of suborbital point of spacecraft
Nadir Lon: 94.3W  
Longitude of suborbital point of spacecraft
Sun Azimuth: 89   Clockwise angle in degrees from north to the sun measured at the nadir point
Space Craft Altitude: 215   nautical miles
Sun Elevation: 29   Angle in degrees between the horizon and the sun, measured at the nadir point
Land Views:  
Water Views:  
Atmosphere Views:  
Man Made Views:  
City Views:  
Photo is not associated with any sequences

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