Founders Grove is as big in popularity as it is in size. It is the most visited grove in Humboldt and is a major North Coast redwood attraction, and for good reason. Don’t be surprised if you find yourself next to a neighborly wanderer like yourself staring up at the massive Redwoods. Getting here is easy, maybe too easy. Founders Grove is located next to the Highway 101 off-ramp straight through the Avenue of the Giants.