Dam UFOs.

[Karl12]

Also spotted this description from Loch Raven Dam which sounds rather similar to descriptions from Wanaque Reservoir Dam (see above).

They were approaching one of the bridges across the Loch Raven Reservoir when their vehicle came to a sudden stop of its own accord. A second later the radio went silent, quickly followed by the failing of the headlights..

The object had the appearance of two saucers facing each other with “an ultraviolet band” dividing them. The light from the object shining off the surface of the water below. They would estimate the object to be between 200 to 300 feet above the water.  

Underneath the object, was a strange “conical shape”, like a “column of fog or haze or mist”  which stretched down to the water. At the same time was a “mum-mum-mum” sound.

The “Forgotten” UFO Incidents Of The Loch Raven Dam

Also this freaky dam case from official Argentinian Military/Government communiques:

The Seven Official declarations made by the Argentinian Government


1978: On the evening of February 4 at the La Florida dam in San Luis, six persons report the presence of a UFO and the descent of an occupant from within, leaving ground marks. The Police Precinct of San Luis, through its chief, Lt.Col. Raul Benjamín López, issues a document which constitutes the fourth official acknowledgment.

Argentinean Military's Role in UFO Research