This was different. First, I noticed small areas of white sand in pools in the spring run. There were some now-dryish pools that had a coating of "sand" on the bottom (but on top of the mud), as if they were filled during the "high tide". We also noticed a 3/4-inch wide band of fine white sand on top of the mud layer on walls about a foot above the water line (high tide line?) along passage near WM. Also, areas where the floor dropped off were covered in fresh white sand (sand over mud). We meant to collect a sample for later "fizz" testing but, alas, the urge to splurge on Philly cheese steaks and beer was too great for our group and we plumb forgot.
Andy Andrew G. Gluesenkamp, Ph.D. 700 Billie Brooks Drive Driftwood, Texas 78619 (512) 799-1095 [email protected]
