>>3982380 (PB) (Notables)

Workfagging right now, but I had a thought about the sub…the pic looked like it was close to shore, and likely fairly shallow.

Since we know the approximate location we could estimate the depth using NOAA charts. https://noaacoastsurvey.wordpress.com/2013/10/23/noaa-nautical-charts-now-available-as-free-pdfs/

Would that narrow down the type of sub by process of elimination? Would need navy fag input.