Essex County, New York holds the Adirondacks at their most iconic, from the steep pull toward Mount Marcy and Algonquin Peak to the boulder corridors of Avalanche Pass. Around Lake Placid, Keene Valley, and Heart Lake, trails thread past cold ponds, spruce forest, and open rock with long views. Pharaoh Mountain, Dial Mountain, and Indian Head give this corner of New York both classic summit days and quieter mileage.