We got all of the puzzles at the beginning, so we could divvy them up amongst team members. (I didn't see all the puzzles; but I could have if I'd been a bit more moth-y, there was a tractable number.) Puzzles didn't solve to words like MONGOOSE or whatever. Instead, each puzzle would end up giving you a set of instructions: go to such-and-such place, look for such-and-such feature, note down such-and-such observation. Depending on the puzzle, some of this instruction might be in plaintext, but some of it would be puzzle-ish. Sometimes there'd be a puzzle that would be super-difficult—except you knew you were looking for the name of a street that intersected Powell, so that narrowed it down.
So it wasn't like a linear BANG; it was more like a Mastermind Hunt, but bigger-scale than their small evening hunts.
Keep an eye out for another of these (next year, I ?guess?). I know some of y'all were turning up your noses, but it was good times, I swearz.