First peak I climbed in Washington was Mt. Si
I've camped out in february near the top and enjoyed the lights of Seattle and the planes flying in and out of Boeing field. Mt. Si is one of those backyard treasures that Seattle has.
I heard someone on the trail say that it's the most hiked trail in the state with something like 160,000 people per year. I'll bet we saw at least 50 others if not more today. Mucho popular! (but I doubt if any others climbed up the Haystack today-mostly locals getting in a workout)