Edge of Time
My last shot for 07_07_07 shows a modern city in the background and an erratic in the foreground. This erratic is part of a long line of glacial erratics stretching from north east of Jasper Alberta to well into Southern Alberta. These erratics indicate the line between the Keewatin flow of the Laurentide Ice Sheet and the Cordilleran Ice sheet. A photograph taken from this spot between 6,000 and 10,00 years ago would have shown a kilometer of ice on the right and Glacial Lake Calgary to the left stretching up the Bow Valley almost to Canmore.
Edge of Time
My last shot for 07_07_07 shows a modern city in the background and an erratic in the foreground. This erratic is part of a long line of glacial erratics stretching from north east of Jasper Alberta to well into Southern Alberta. These erratics indicate the line between the Keewatin flow of the Laurentide Ice Sheet and the Cordilleran Ice sheet. A photograph taken from this spot between 6,000 and 10,00 years ago would have shown a kilometer of ice on the right and Glacial Lake Calgary to the left stretching up the Bow Valley almost to Canmore.