Black Sand Beach, California.

Early morning waves crash upon Black Sand Beach in California. Two large Knockers can be observed in the distant waves.

This sand is largely composed of an iron ore called magnetite, which, as its name suggests, is highly magnetic. Derived from the erosion of igneous rocks in the Sierra Nevadas, it flows to California via the tributaries of the San Joaquin and Sacramento rivers.

This region was originally inhabited by the Kumeyaay peoples. 10% of profits from the sale of this photograph will benefit the National Indigenous Women's Resource Center.