Yakima Peak (6226')
Yakima Peak has the shortest access I've encountered yet, pretty much right out of the parking lot at Chinook Pass (WA 410). In fact, Strava had the round trip at 1.25 miles. This was a pleasant short jaunt despite rising temperatures, sporting great 360 degree views. Yakima was my first peak on the Rainier 100 list this year at #63.