Mangrove forest is a coastal wetland community where seawater from tidal forces flood and retreat from an area twice daily. It is defined by the mangrove tree, which dominate and are one of only a few species of plants that are able to survive in such saline conditions.
The largest mangrove swamp in the northern part of Sonora. Amazingly for its size it's also the northern-most area of mangroves on the west coast of North America. There are a few small scattered groups of mangrove trees within a few kilometers north of this large estuary, but this spot is hundreds of times bigger than anything else in the area.