Nanos about in the area - bring your tweezers. There are many many muggles in the area. Please take appropriate caution.
This multiNANOtional cache likes to hang out similar to it's mates in the area, so once you've found one you're likely to spot more of it's ilk in the neighborhood. While multi likes to hang out in a couple different places he doesn't like to drive, so his wherabouts can be reached fairly quickly. He does like counting, and likes things secure. If you count stand on the lightning box by your start and walk the squares in a line south, toward Anton Drive, count the number of concrete squares in a single straight line BETWEEN the concrete Lighting boxes and use it correctly you can find clues to his latest hangout.
KEY = number of concrete squares BETWEEN (not including) the ones with the Lighting box (see picture in the cache to help).
Front door = N 42 18.(82-KEY)9 W 122 51.(KEY+33)0
You can check your answers for this puzzle on GeoChecker.com. (remember to simply enter the coordinates and hit enter or the yellow "Check Coordinates" button)