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Wood Canyon Creek is a perennial stream in Aliso and Wood Canyons Regional Park, Orange County, California. A tributary of Aliso Creek, it drains a deep undeveloped valley to the west of Aliso Viejo. The Wood Canyon was populated by the Acjachemen tribe hundreds of years ago; many archaeological sites along the creek provide evidence of their habitation. Spanish explorers and colonists arrived in the mid-18th century, establishing missions and a rancho that extended around the Aliso Creek watershed. Wood Canyon was used first as a cattle grazing area; after California became part of the United States, it was used to graze sheep. From the 1960s onward, the creek's flow has been heavily affected by urban runoff from suburban residential development. The Wood Canyon watershed drains a portion of the San Joaquin Hills, a short coastal mountain range that uplifted beginning in the mid-Pleistocene (1.22 MYA). ==Course== The Wood Canyon Creek now begins slightly south of California State Route 73. The original headwaters have been filled in and piped under residential communities. The creek proper begins at a storm drain in Canyon View Park, Aliso Viejo and flows into an artificial wetland designed to control and treat the runoff.〔(Wood Canyon Emergent Wetland Project. ) City of Aliso Viejo.〕 For its first , the creek flows south through a narrow forested gorge. Further downstream the valley widens to form grasslands and meadows, where the remains of sheep corrals built in the 1800s can be found. About halfway along its length the creek receives effluent from the Muirlands Storm Drain, then is joined by the intermittent Mathis Canyon Creek from the right. Flowing past Temple Hill, a peak of the San Joaquin Hills to the east, it crosses the Wood Canyon Trail three times. Several grouted riprap drop structures have been built here to protect the trail from stormwater erosion. It then passes under the Aliso Creek Trail through a series of culverts and cascades down into Aliso Creek. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wood Canyon Creek」の詳細全文を読む スポンサード リンク
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