The John Muir Land Trust announced plans to acquire the Wagner Ranch Nature Area in Orinda in the hopes of turning it into a community spot and educational center, the trust said this week. The 16-acre parcel is next to Wagner Ranch Elementary School, and the trust said the land could become an outdoor classroom for children. The acquisition is not yet final, and a "due diligence period of several weeks comes next," the trust said in a news release Tuesday.