Amazing place to visit. It is the McCain Valley road off of the old highway 80 in eastern San Diego. The road is dirt , however, very well maintained. There is a wind-farm her and you can get up and close the the turbines. The Carrizo Scenic Overlook has quite an amazing view to the east that on a good day, one can see the Salton Sea. And by the way, watch out for the rattlesnakes which are in season now (June 2020)