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About This GigapanToggle
- Taken by
- Scott Johnson
- Explore score
- 1.48 Gigapixels
- Date added
- Jun 04, 2013
- Date taken
The Parfrey's Glen Formation is a Cambrian sandstone and conglomerate that lies directly on top of the 1.7 billion year old Baraboo Quartzite. The cobbles you see are all quartzite-- at the time this was deposited, ocean waves were lapping up against cliffs of Baraboo Quartzite. Large storm events would drag heavy cobbles (and even boulders) farther off-shore, which is what you see here.
The opposing wall can be seen here: gigapan.com/gigapans/131718