Free: Contests & Raffles.
Yeah. Go talk to the timber cruisers and loggers.
I have never done this in Washington, but in eastern Oregon our main pre-season scout technique was to get lightning strike data from folks manning the towers. Most lighning strikes around Baker City were hitting high concentration of minerals. It would create a natural mineral lick when the lightning opened up the soil. We'd bring chips and salsa, soda, beer, Crown, candy...just about any home comforts were happily traded with these tower workers. One guy on Lookout Mountain east of Baker City put us up for the night and allowed us to watch as he recorded close to 80 lightning strikes in one evening. That was rather fascinating! I killed a nice muledeer and both my hunting partner and I tagged bulls on those lightning strikes a few weeks later. All because of a little friendship and some bartering!