Delta at Big Spring Coulee. View to the right, looking toward the Cochrane Ranche Provincial Historic Site and the Big Hill Creek valley

About 10 000 years ago, the valley of Big Hill Creek carried a lot more water than it does today. At that time, this spot was actually an old delta created as meltwater travelling through the valley entered Glacial Lake Calgary. This delta indicates the water level of the ancient glacial lake. Today's Big Hill Creek has cut through the edge of the delta before passing under Highway 1A.

-Nathan Kneisel-

Click on a dot to continue the tour:

Legend

	Holocene	Present - 10,000 years ago
	Quaternary	10,000 - 25,000 years ago
	Tertiary	25,000 - 65 million years ago
	Mesozoic	65 - 245 million years ago
	Paleozoic	245 - 670 million years ago