You don’t need a 4wd for the whole length of Sierra Madre rd. but would highly recommend it and would not recommend a passenger car. The dirt road to get to camp is about 10 miles. The road is bumpy but In good condition overall, we made it on a stock height 2wd truck. We arrived on Saturday 4th of July and all the sites were taken so we decided to drive another 15 miles up the road to a nice shaded location just right off the road. Didn’t see anybody the whole night. The next morning we drove up even more to McPherson peak where the views are amazing. We drove back down the road back to Miranda pines and everybody had left, we had the whole campground to ourselves. There was a full moon that night that lit up everything beautifully. It did get very windy that night. The campground consist of three sites and does have a pit toilet. All sites are great and offer great views. Cell phone service was on and off so don’t rely on it.