Two Harbors

photo banner of different intertidal species

Two Harbors Biodiversity Survey findings

Two Harbors is located in the Southern Channel Islands, on Santa Catalina Island, California. This site is located in an Area of Special Biological Significance (Santa Catalina Island – Subarea One, Isthmus Cove to Catalina Head ASBS). This moderately sloping site consists of moderately uneven terrain, containing few cracks and folds.

closeup of research site

Two Harbors is dominated by a mixture of consolidated bedrock and boulder fields, and the area surrounding the site is comprised of a mixture of consolidated bedrock, boulder fields, and sandy beach. The primary coastal orientation of this site is southeast.

closeup of research site

Biodiversity Surveys were done in 2010, 2013, and 2018. The Biodiversity Survey grid encompasses one section that is approximately 20 meters (along shore) x 10 meters (seaward). For more information see the Biodiversity Survey findings at this site.

For more information about Two Harbors, please contact Pete Raimondi (raimondi@ucsc.edu).

Last modified: Aug 07, 2025