The serene, majestic beauty of Armstrong Grove is a living reminder of the magnificent redwood forest that covered much of this area before logging operations began during the 19th century. These remarkable trees live to be 500-1,000 years old, grow to a diameter of 12-16 feet, and stand from 200-250 feet tall. Coast redwoods are classified as temperate rainforest and they need wet and mild climates to survive. The rainfall in Armstrong Redwoods averages 55 inches per year and the trees are often shrouded in a mystical fog that helps to maintain the moist conditions needed for the redwoods to survive. Operating hours are 8 a.m. until one hour after sunset. If you would like to hike through the trails, you can park in the lot and walk into the reserve. Otherwise, a small fee will allow you to drive through some areas of the park.