So, you know enough about naval combat and modern installations. One of these naval basins does not belong.

Julius Caesar held the first ever-recorded one in Rome (46 BC). Claudius held his 106 years later (52 AD) on a natural lake that no longer exists, Lago Fucino. The thousands of participants who fought each other in mortal, naval combat were actually condemned prisoners. Relevant historical records indicate the naval combatants saluted emperor Claudius with the phrase morituri te salutant (those who are about to die salute you). There is no evidence this salute was ever used on an occasion other than Claudius's single naval battle. [1]

.
In 1896, David Taylor designed Washington Navy Yard's Experimental Model Basin (EMB). The Basin named for him was built in 1939, in Bethesda, Maryland. The David Taylor Model Basin has been one of the world's largest ship model basins, and was one of the an earliest users of computer technology. It was one of three government agencies at the 1959 meeting where the primitive COBOL computer language was created. The David Taylor Model Basin is currently operated as a field activity of the Carderock Division of the Naval Surface Warfare Center.
However, ...
Lake Pend Oreille (pronounced - Pond-o-ray) ..covers almost 150 square miles of Idaho's northern Panhandle. It is also fairly deep -- up to 1,150 feet deep and fairly secluded.
.
A small Navy base, formerly the western field station of the David Taylor Model Basin, is involved in acoustic research and development to make ships and subs operate more quietly. The LSV (shown above) should look very familiar to all submariners. Small subs provide big payoffs for SUBMARINE STEALTH.
.
There have been approximately 100 employees and contractors assigned to the base.
.
Idaho is certainly not the only landlocked, U.S. naval facility on the mainland. Below is another, much larger part of the Navy Installations Command. Home to both a navy analysis center and an Army Corps of Engineers unit, 7,500 military and civilian people are assigned to this base. As we can plainly see, it features another natural test basin. Only some of you will recognize where this is located, and not many of you submariners.
Submarines are always silent and strange.