Park at the newly configured Hidden Valley parking lot. This is not the campground, but the "real" Hidden Valley. Facing the parkinglot is a large jumble of boulders and walls. Skirt this jumble to the left, and keeping walking on the flat desert floor. After about 10 minutes, a large pillar appears, with two bolted routes on it. Loose Lady is the left route. Thread through shady boulders and up to a platform at the base of the route.
The climb begins with two bulges, the first of which is the crux of the climb. If you climb to the second bolt without slipping, then go for the rest of the climb. The bolts are typical for Josh, meaning well spaced. Though there is a bolt in your face on the crux moves, there are several places higher up where a fall would be dreadful. The climbing consists of mostly flake pinching and excellent friction. One of the best bolted climbs for it's grade in the park.
QDs. And slings for the bolt anchor. It's possible to rap with one rope if the rappeler trends to the left (facing the rock). The one rope rappel has a big sticky Yucca at the base, so look down well before landing! It's easier to rappel straight down the face with two ropes.