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none are so close or convenient to us Wasatch Fronters as Nutty Putty was
How about Green Eyed Monster? Very well known, and Ophir isn't that far away, and seems as close as Nutty Putty. Since it has been vandalized, I don't think it would hurt to give it away.
Unfortunately, the smaller formations are now gone, but the big flowstone is still there. It's still way better than Nutty Putty. If you email me, I can give the location, but I still wouldn't post it on the net.
Also, there are farily well known caves in Rock Canyon and around Ogden (Jumpoff Canyon), which are close to the Wasatch Front, but I won't share these. Try joining the Grotto and you may be able to join a trip.