the vizcaíno-serra oak (also known as the junípero oak) was a large california live oak tree closely associated with junípero serra and the early history of monterey, california. first described in 1602 by the explorer sebastián vizcaíno, it stood next to a creek in what is now monterey state historic park. the tree was declared dead in 1904 and cut down in 1905. the preserved trunk and lower branches were erected in the grounds of the cathedral of san carlos borromeo where they remained for most of the 20th century. although the remains of the tree have since been removed, pieces of it are on display in local museums.