Steep and intimidating even on toprope, the Space Invader starts at 4" and only gets wider. Tie in and get ready to struggle, whether you choose to jam it or layback.
Just west of the Ahwahnee parking lot (just before the road splits into the lot), approximately 50' north, directly into the boulders. You can see the top of the crack (6" crack) from the road.
The anchor is one good bolt and one not-so-good bolt. A couple directionals in the 4-5" range are highly recommended, as the route overhangs 45 degrees. Be careful setting up the TR, it is exposed and slippery.
If leading, you might need/want 2 each 4-5". One 6" piece will do.