Canyon del Rey Watershed

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The Canyon del Rey Watershed is located entirely in Monterey County within the Central Coast of California. The watershed is approximately 16.8 square miles and contains portions of the cities of Monterey, Del Rey Oaks, and Seaside[1]. The Canyon del Rey Watershed drains into Arroyo Del Rey creek a perennial stream that begins in the eastern portion of the Canyon del Rey watershed near Laguna Seca Race Track, and flows west terminating into the Monterey Bay.

Slope Map of the Canyon del Rey Watershed. The purple outline represents the Canyon del Rey Watershed. Map provided by Balance Hydrologic Inc, and appart of the : 2014 Canyon del Rey Master Drainage Plan Draft.

Watershed Components

Arroyo del Rey

Arroyo del Rey is the main creek of the Canyon del Rey Watershed. It begins in the east along Highway 68 near the Laguna Seca Race Track. It flows westerly next to Highway 68 until it reaches the Ryan Ranch Business Park in Monterey[1]. The creek then follows Highway 218 into the city of Del Rey Oaks. Arroyo del Rey runs through recreational areas including Frog Pond Wetland Preserve and Del Rey Oaks Park, then going through the community of Seaside where it establishes both Laguna Grande Regional Park, and Roberts Lake [2]. The outlet is located within Monterey State Beach.

Lakes and Preserves


  1. 1.0 1.1 Canyon del Rey Master Plan Draft- 2014
  2. Sustainable Del Rey Oaks