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Alameda County Altamont Landfill Open Space Fund <br /> Costleridge Property Acquisition <br /> Pleasanton Ridge Regional Park <br /> East Bay Regional Pork District <br /> The property lies within the Alameda Creek Watershed and contains two seasonal streams <br /> that drain to the Arroyo del la Laguna. In addition, there are many other seasonal drainages <br /> and a natural spring. <br /> The pristine and relatively untouched natural condition of the landscape offers prime habitat for <br /> a variety of special status animal species, in addition to plant species. These include the Golden <br /> Eagle. Pallid bat and Yuma myotis bat. The property also supports potentially over 300 species <br /> of birds, mammals, reptiles, and amphibians, many of which are prey for the aforementioned <br /> special status species. Larger mammals include coyotes, black-tailed deer, American badgers, <br /> bobcats and mountain lions. <br /> The property is located in a region with an extensive history of human occupancy and <br /> development. The Ohlone people are known to have inhabited and traded in the area as <br /> evidenced by bedrock mortars, middens, oral history reports and archaeological resource <br /> mapping. European settlement of the area and grazing of the grasslands began in the mid-I9' <br /> century. Historic resources in the Pleasanton Ridgeland area include houses, outbuildings, <br /> orchards and ponds. The Castleridge property currently boasts a trail that is reported to be a <br /> portion of the old Pony Express Route. <br /> Acquisition and permanent protection of the Castleridge property will allow EBRPD to expand <br /> Pleasanton Ridge Regional Park, which abuts the subject property on its southwestern and <br /> southern boundaries. Over 8,800 acres have already been preserved and the addition of this <br /> property will expand the current wildlife corridor of contiguous open space created by <br /> EBRPD's Pleasanton Ridge Regional Park, the City's 237-acre Augustin Bernal Park, the San <br /> Francisco Public Utilities Commission (SFPUC) open space lands surrounding their San Antonio <br /> and Calaveras Reservoirs and EBRPD's Mission Peak Regional Preserve and Sunol/Ohlone <br /> Regional Wilderness. Acquisition of this property will also create more opportunities for public <br /> recreation, such as hiking, biking, nature viewing and dog walking. The historical Native <br /> American and European presence provide opportunities for cultural and historical <br /> interpretation in conjunction with the City of Pleasanton's historic Alviso Adobe Park <br /> immediately to its east, and the plant and animal communities and habitats provide <br /> opportunities for environmental and conservation education. <br />