See if you can interpret the geologic history of what's on display here.
... on the western slope of Marys Peak, Oregon Coast Ranges.
... in the Marys Peak Sill, Oregon Coast Ranges.
Unobstructed, but a little hazy.
North and Middle Sister in the fading light of evening.
... from the Dee Wright Observatory.
Compare to morning: www.gigapan.com/gigapans/190062
View towards Santiam Pass, Oregon Cascades.
... below Santiam Pass.
... from the road maintenance area at Santiam Pass.
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