I was out of the service by the 70s and was totally disinterested in reading the news by then.
I don't remember hearing about the Pogy. I did a search on the Pogy and could find no reference to the Pogy running aground or hitting an underwater mountain. Could you please elaborate?
During a night surface attack on February 7, 1943, USS GROWLER became engaged in a life and death struggle with a Japanese vessel which attempted to ram the submarine. Commander Gilmore was able to turn the tables and rammed the enemy instead. Now close alongside the Japanese ship, GROWLER's bridge was sprayed by deadly machine gun fire. Gilmore got everyone below to safety except himself. Badly wounded, he knew that it would take too long to be carried below and anyone attempting to do so would be exposed to enemy fire. Every second that GROWLER remained on the surface increased her vulnerability to attack and sinking. Gilmore ordered "Take her down,' without him. He was posthumously awarded the Medal of Honor for this selfless act of heroism.source
Well the story as was told was that the boat was transiting in the Western Pacific and and got a "red sounding". The OOD ordered a depth change and slowed. The depth went from >500 Fathoms to 0 in seconds. The boat hit a glancing blow on the sea mount.
Like I said, this was "Pogy-lore" so I can't say it's 100% accurate.