Make sure you start at the correct spot! I didn't start where the official entrance was, unbeknownst to me. I ended up lost for 2 hours thinking I was on the "loop" but really I was on a side trail. All the side trails are marked red, which made me SO LOST trying to find my way back. Also, the red and orange markers look very similar in some parts. This area could really use some updating especially due to the fact that all the non main trails are marked red, and I was never able to find a map online to help me find my way back. I had to climb all the way back up the mountain and down again to come out in the correct spot.
Great trail for training, and not too many people. It has a good amount of uphill, lots of opportunity for variation on routes, and a great view when you get to the top and climb the fire tower. it's an awesome hike for dogs as well, good visibility, pretty consistent terrain (no need to worry about rocks or tender paws), 97% in the shade. Just bring a good amount of water for both of you if you are going on a hot or humid day. Have fun!