Columbia Lake: Source of Columbia River which empties into Pacific Ocean at Astoria, Oregon. |
This picture was taken just as we were leaving Radium. |
Redwall Fault
When great blocks of the earth's crust slipped past one another, solid limestone was ground into jagged fragments called Breccia, which in turn have been stained by iron oxide.
After long centuries of freezing and thawing, erosion by scouring streams and rolling rock, these great cliffs remain to trace the Redwall Fault.
Hopefully there will be more pictures from the back of the bike as we wind down the summer.
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