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AUGUSTIN BERNAL MOUNTAIN BIKE TRAIL PROJECT DRAFT INITIAL STUDY from 1946 to 2016, and historic maps available from 1906 to 2018 were inspected to observe previous development in the project APE. The APE is currently undeveloped.These maps and images indicate that the APE has never had any development within it. On April 12, 2021, Dudek archaeologist William Burns conducted an intensive pedestrian survey of the APE.Survey was consistentwith Secretary of the Interior Standards.Mr.Burns inspected the ground surface for cultural resources, including artifacts, features, and/or midden soils. Surface visibility within the APE was low (<5% visibility) due to vegetation, with the exception of the existing informal bike trail, which is highly disturbed from bike travel but allows for 100%ground visibility. No cultural resources were identified during the survey(Appendix C). Impact Discussion a) Would the project cause a substantial adverse change in the significance of a historical resource pursuant to§15064.5? See Section 3.5(b), below. Impacts would be less than significant with mitigation incorporated. b) Would the project cause a substantial adverse change in the significance of an archaeological resource pursuant to§15064.5? A records search was completed for the current project site and a 0.5-mile radius on March 25, 2021 (Appendix C). The records search did not identify any cultural resources within the APE. Results of a Native American Heritage Commission (NAHC) Sacred Lands File search, provided March 2, 2021, did not identify resources within the search area, which included U.S. Geological Survey sections intersecting the project site and surrounding 0.5-mile buffer. No additional archaeological or built environment resources are previously documented on the project site. One cultural resource, the main clubhouse of the Castlewood Country Club, is located approximately 0.45 miles east of the APE. An intensive pedestrian survey conducted of the project site on April 12, 2021 did not identify any cultural resources. The project site is undeveloped, and surface visibility within the APE is low (<5% visibility) due to vegetation. Based on observation of present conditions and soil development in the area, there is a low potential for currently unidentified cultural material or deposits to be encountered during project implementation and/or future use of the area (Appendix C). The project would have no impact to known cultural resources. However,there is a low possibility for the project to inadvertently impact currently unidentified cultural resources. Archaeological protection measures for potential discoveries of cultural resources are identified in MM-CUL-1.With implementation of MM-CUL-1, impacts to archaeological resources would be less than significant. Therefore, impacts would be less than significant with mitigation incorporated. C) Would the project disturb any human remains, including those interred outside of dedicated cemeteries? The project site does not have any association with a cemetery or mausoleum and was not used historically for burial or internment purposes. No known human remains or burial sites were 12956 DUDEK 47 April 2022