Dive 07, our second archaeology dive, explored Monterrey Shipwreck B, a small wooden vessel from the early 19th century in roughly 1,300 meters of water. Though the smallest of the three Monterrey shipwrecks, Monterrey B may prove to be one of the most interesting and important archaeological and archaeo-biological discoveries in the Gulf of Mexico. The dive began with a slow transit starting at the stern, moving along the starboard side to the bow, and then back to the stern along the port side. All visible artifacts were carefully inspected and recorded and the associated colonizing organisms identified or described. Artifacts and features of particular interest include: an iron gudgeon and pintle; a cast iron ship’s stove; two cántaros (water storage jars from Yucatán); large glass bottles; ceramic tableware; navigational instruments; bales and stacks of hides; large white blocks (hypothesized to potentially be tallow, copal, or rubber); and intact wooden boxes, which may still contain their original contents. Biological observations on and near Monterrey B include: sea cucumbers, crustaceans (including shrimp, squat lobsters, and crabs), corals, tubeworms, isopods, polychaetes, anemones, ship worms, clams, eels, sea spiders, bivalves, brittle stars, spoon worms,  limpets, and bacterial mats.