The
Cinnamon Beds is one of several long known sites that
had been explored for many decades and the name was
inspired by the hollow thundereggs lined with red to
brown hued druzy quartz, hence "Cinnamon Bowl".
The site was heavily dug up, but it's still possible to
find something there. The greenish white thundereggs are
mostly hollow and multi-chambered, usually lined with
chalcedony and druzy quartz. I explored it for a short
time to see if it produces any banded agate and found
few ones in smaller thundereggs. The agates are clear to
gray and I found one with orange agate (a surprise
find). There was a story of a rockhounder discovering a
large pocket of cinnamon colored druzy quartz lined
hollow thundereggs and how his partner was armed with a
gun to guard their pocket until it had been dug out. The
large pit dug by the armed rockhounders is still there.
Further
Information
on Black Hills Bed can be found at this DesertUSA.com