The Laguna Coastal Streams Watershed is approximately 19.35-square-miles and includes portions of the cities of Aliso Viejo, Laguna Beach, and Laguna Woods. It consists of the Laguna Canyon Creek watershed which runs north to south, directly through the middle of this watershed, and discharges into the Pacific Ocean in Laguna Beach. Several other smaller watersheds, including Boat Canyon, Blue Bird Canyon, Rim Rock Canyon, and Hobo Canyon, also drain portions of these cities. This watershed is bound on the west by Emerald Canyon and on the east by the Aliso Creek watershed. The remaining undeveloped areas are largely within the Laguna Coast Wilderness Park and the Aliso and Wood Canyons Regional Park. The Laguna Coast Wilderness Park covers most of the western half of the Laguna Canyon Creek watershed, and a small portion of the Aliso and Wood Canyons Regional Park is included in the northeastern part of the watershed.
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