Go on an archaeological adventure with this author as he digs up portions of some 90-year-old bricks at Arkansas' Crater of Diamonds State Park. Learn what letters are embossed on them and help figure out the coded message they convey. How do these pieces of old bricks fit into the history of the diamond recovery plant that used to sit at this site? How many diamonds were recovered by this plant? Has their largest find remained the biggest diamond discovered in the USA so far? Go with the author on this amazing adventure by reading this fascinating ebook about our nation's diamond recovery history.