Dillon Stanger : Take a look at my answer to Jennifer Dunaway In her Cob Forum Thread ' Where do you get your Sand ' ! Though I too live in the Northeast, I'm 
 sure this will help !  Good luck with your project ! Happy Cob Dancing ! For small amounts ask the local highway dept., they probably have a protocol to check clay 
 banks in Road cuts due to frequent washouts ! 

 A. L.
 
 For the Good of the Craft ! Be safe, keep warm ! As always comments and questions are solicited  and are welcome ! PYRO - LOGICAL Big AL !