 At the extreme northern point of Tulare Lake was its natural, occasional "flood year" spillway northbound into Bogg Slough, Fresno Slough, and the San Joaquin River's watershed, onward to the sea at San Francisco Bay.The present (2014) remaining marshy remnants of Bogg Slough, with its unfarmed "oxbow" structures may be the last of their kind to avoid the plow in the Kings-San Joaquin river system.This "summit," or spillway is located just a few miles north-west of Lemoore, off Grangeville Blvd at elevation .