Soledad Valley is a coastal valley in San Diego County, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 at the northern end of the city of San Diego

San Diego, California

San Diego is the eighth-largest city in the United States and second-largest city in California. The city is located on the coast of the Pacific Ocean in Southern California, immediately adjacent to the Mexican border. The birthplace of California, San Diego is known for its mild year-round...

. Mention of the valley was made as early as 1850 in association with the occurrence of Pinus torreyana at the mouth of the lagoon. The colony of the endangered Torrey Pine

Torrey Pine

The Torrey Pine, Pinus torreyana, is the rarest pine species in the United States, an endangered species growing only in San Diego County and on one of the Channel Islands, endemic to the coastal sage and chaparral ecoregion in the U.S...

divided by Soledad Valley is one of only two colonies of this tree in the world.