LakeForest is located in the heart of South Orange County, California in east of Interstate 5 and 405 Freeways near the Foothill and Eastern Transportation Corridors, which provide easy access to Los Angeles, San Diego, and the Inland Empire. Being a young city Lake Forest is situated in the Saddleback Valley adjacent to the 1,500 acre Whiting Ranch Wilderness Park and beautiful Saddleback Mountains descriptively named for their appearance. The city also serves as the gateway to Cleveland National Forest. The City also plays host to the headquarters for hard-drive maker Western Digital and telecommunications software developer Green light Wireless Corporation.