Day 2: Dilworth Mountain, Mt. Boucherie,White Lake Formation, and Hot Sands Beach ![]()
Mt. Boucherie From the East Side of Okanagan
Lake Showing Afternoon Cumulus Buildup
The second day of our trip begins in Kelowna with a short drive to our first stop near the Kelowna Golf and Country Club on Glenmore Drive. We will spend about 30 minutes to an hour here before crossing to the west side of Okanagan Lake.Today we will be observing features found in what is called the Thompson Plateau physiographic region. (physiographic map)
The Thompson Plateau is characterized by sedimentary and volcanic rocks of exotic terranes. This means that they originated elsewhere. (Unlike the the rocks of the Okanagan Highland to the east). These exotic terranes were added to the west coast of the North American continent during the Mesozoic era. This occured as the North American plate collided with the Pacific plate.
These terranes were later extensively intruded with magmas which is the reason for the large abundance of granitic rock in this region.
This region saw continual uplift and then extensive widespread erosion to create the plateau like topography.
Between 10 and 20 million years ago, volcanism was the major geologic force at play in this region. The "Chilcotin Volcanics" found here are a series of plateau basalts that formed from highly fluid flows of basaltic lava.The Thompson Plateau remains in the rainshadow of the Coast Mountains so the semi-arid characteristics that were evident in the Okanagan Highland are prevelant here as well.
We will hopefully have a chance to witness some local scale meterological events later in the afternoon and evening. During the summer, the valley often experiences cumulus buildup in the late afternoon and mountain breezes in the evening. The latter are a delight for windsurfers. Those adventuresome members of the group may try their hand at windsurfing if the conditions are right this afternoon.
We will once again overnight in Kelowna.
Stop 1: Dilworth MountainStop 2: West of Okanagan Lake: Explore Mt. Boucherie
Stop 3: White Lake Formation and coal beds by Gorman Brothers sawmill
Stop 4: Hot Sands Beach - local climate (evening winds, mountain breezes (windsurfing), cumulus buildup etc.)
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