The disk is set in top of the third step from ground level. The steps are located between the Puffin Stuff Pipe Shop/Adult Boutique and the Flywheel Gallery/Salon. Jerome Tattoo is right next door, so you could make a really exciting afternoon out of it!
Disk has been painted over but stamping is still legible. Handheld GPS WAAS-corrected coordinates are 34 45 02.3(N) 112 07 0.2(W).