Front:
CRYSTAL LA GHVE
Back:
Entrance to Crystal La ke Cave
5 miles Sou th of Dubuque, lowa Hwy. 52
Discovered in 1868 by a group of lead miners.
POSTCARD
POSTAGE
Photo by Bill Flagel
REQUIRED
POST CARD
Address
165507
Color View Cards, 316 North Walnut Street, Maqu oketa, lowa 52060
