Pass the Sputnik Boulder like you are going up to the main area for the Lower Satellites and the Third Flatiron. Do a big S-turn past some other boulders and you will come to a fork in the trail. Go left towards the main Satellites area. Pass the huge wallknown as The Wave on your left and the Stardust Boulder (with the classic Aerogel) on your right.
Turn right after the Stardust Boulder, heading into the talus toward the immense boulder known as The Mothership. Whan the Mothership's NE Corner (V0) is in front of you, take a quick left and look left at a North/Northwest-facing vertical wall that is maybe 15 feet high. Hidden Warmup ascends the face up and over using mostly good holds and is OK as part of a circuit of easier problems.