• Regional: North America: United States: California: Counties: San Diego: Science and Environment  (23)
• Regional: North America: United States: California: Regions: Southern California: Science and Environment  (12)
• Regional: North America: United States: California: Science and Environment  (81)
• Science  (106,976)

• Escondido Creek Conservancy - Dedicated to the preservation and protection of the natural open space within the Escondido Creek watershed. Includes committees listing, membership information, information about the watershed, contact information, and links to other related organizations.
• The Lake Hodges Monster: Hodgee - Includes overview of the lake, history of the area, including sightings of the monster, and related books.

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