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Here are two links to posts dealing with how to post pictures on Black River Fossils forums.
1. How to Post Pictures on Black River Fossils Forums by ditchweezil
2. How to Post Pictures on Black River Fossils Forums by Daryl
Cindan, I've never been there and I don't know much about it, but I know the VMNH (Virginia Museum of Natural History) conducts field trips to Chippokes Plantation where there are dozens of species of mollusk and other fossils there, and supposedly most are very well preserved. You may want to email the curator of the VMNH at: alton.dooley@vmnh.virginia.gov