 H10945/04 -- OPR-E350-RU-04; 
Survey Position: 36.98435360° N, 76.14186037° W
Least Depth: 11.04 m
Timestamp: 2004-061.19:54:44.608 (03/01/2004)
appears to be an old buoy block Chart 36 OBSTN with danger curve.
UPDATED 9/25/2006 JCM