Tea is the magic key to the vault where my brain is kept. -Frances Hardinge
Thursday, August 2, 2018
Manresa Grotto
These lines represent the lap marks of the ancient Glacial Lake Colombia shoreline. This is the very same lake that covered the Spokane area during the last ice age. This grotto is almost two hours fast driving from my home in Spokane.
4 comments:
Cathlene Baugher
said...
The bubble effect is cool! Do you know what causes it?
4 comments:
The bubble effect is cool! Do you know what causes it?
It's conglomerate rock: the holes are where pebbles used to be, but have been expanded by wave action.
My science girl! Thank you!
You are most welcome!
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