Missing Boater Alert 🚨. Units from NCSO, Texas Parks and Wildlife Game Wardens, RC 287 VFD, and DPS are currently searching for a missing boater on Richland Chambers Reservoir near the FM 2859 public boat ramp. Boat is described as a white Express Boat 16 or 18ft in length with a Yamaha motor. A single occupant is believed to be on the boat. If you notice activity on the lake, this is likely what you are seeing. If you spot this boat, please contact the Navarro County Sheriffs Office at 903-654-3001.