A parkland plan proposes linking 17 miles of trails and natural habitat in an uninterrupted loop running through the heart of the San Gabriel Valley and Whittier area. The two rivers, the "strands" of the necklace, would culminate at Whittier Narrows and be linked at the top by a "clasp"--a trail running through Hanson Quarry. The entrance to Peck Road Water Conservation Park, a former gravel quarry located in Arcadia may be made more inviting under the plan.