Uploaded November 2019 | Updated September 2026, 3 weeks ago

---

We're celebrating the anniversary of Mallows Bay-Potomac River National Marine Sanctuary! Mallows Bay was the first national marine sanctuary designated since 2000 and protects numerous historical artifacts in the tidal Potomac River.

Get to know it: sanctuaries.noaa.gov/mallows-potomac/.

#Maryland #PotomacRiver
--------------------------------------------
Follow National Marine Sanctuaries and our Earth is Blue Campaign on:
Facebook: facebook.com/NOAAOfficeofNationalMarineSanctuaries
Instagram: instagram.com/noaasanctuaries
Twitter: twitter.com/sanctuaries
YouTube: youtube.com/user/sanctuaries
Flickr: flickr.com/photos/onms
Learn more: sanctuaries.noaa.gov