Eagle Rock is located near Warner Springs and is on the Pacific Crest Trail. As you can see from the pictures here, Eagle Rock is an interesting rock formation in the middle of a large field. It is a great place for a picnic or a sunset hike.
Park your car near the fire station in Warner Springs and hike southbound on the Pacific Crest Trail. The time of year to do this is in the spring in April or May when the grass is green and the wildflowers and poppies are out in full bloom.