Pine Flat Lake is an artificial lake in the Sierra Nevada foothills of eastern Fresno County, California and provides the western north-south border to the Sierra- and Sequoia National Forests, about 30 mi (48 km) east of Fresno. Infrastructure security measures taken at the dam are greater than at most California dams, and the parapet wall cannot be approached from any direction. A large area in front of the dam that was previously accessible has been closed off, as have some roads and trails.