altitude of the lake surface is 440'ASL so that puts the bottom ~300 below sea level and there are virtually no deep currents, or so the Navy says anyway altitude of the lake surface is 440'ASL so that puts the bottom ~300 below sea level and there are virtually no deep currents, or so the Navy says anywayGlad the Chode Man is back. On a recent thread 3 attempts by the Chode Man failed to materialize. Didn’t pay your electric bill?