Manicouagan Crater, Quebec, Canada
N 51° 15.303 W 068° 11.232
19U E 556720 N 5678501
It is the fifth largest impact crater known on earth.
Waymark Code: WM4NNJ
Location: Québec, Canada
Date Posted: 09/12/2008
Views: 75
The Manicouagan crater lies in northern Quebec, Canada (Lat 51 23N, Long 68 42W). It is one of the largest known, with a diameter of about 100 km. The crater is a multiple-ring structure, but the feature that shows up best in this Landsat satellite photo is the inner ring, which is occupied by a lake (Manicouagan 5 reservoir) with an outer diameter of about 70 km. The impact occurred 214 million years ago. The asteroid probably had a diameter of about 5 km. It may have produced a mass extinction similar to that at the end of the Cretaceous period.
It is so large and remote that there was no way I can show it with a picture.
To do the GPS part of my log I took a picture of my Streetpilot GPS which shows my position ( the black Triangle) and the map view shows the Manicouagan lake.
I later visited the Manic 5 Hydro complex and saw the dam that produced the Manicouagan reservoir-lake.
Type of Crater: Simple
Crater Diameter: 100 KM- 62 Miles
Age of Crater: 214,000,000.00
Crater Web Page: [Web Link]
View from the Coordinates:
The visitor can see the basin created by the Daniel Johnson Dam at Manic Cinq. Where there was once two rivers, the damn flooded the area and created beautifil islands out of the higher areas.
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Visit Instructions:
1. An original photograph of your visit must be supplied with your log. Invalid
logs will be deleted.
2. The waymark owner may have specific logging requirements