Why Vermont Beats Everywhere Else — a stop on Vermont Route 100.
Let's talk about the leaves, because Vermont's reputation is not marketing — there's a real reason the color here is better than almost anywhere.
It comes down to the SUGAR MAPLE. Yellows and oranges are pigments that sit in the leaf all summer, hidden under the green chlorophyll — when the tree shuts the leaf down in autumn, the green drains away and the yellow is simply revealed. Easy. But the REDS are different: the tree manufactures them fresh, in autumn, out of sugars trapped in the dying leaf. And the sugar maple is exceptionally good at it.
Which means the reds depend on weather in a way the yellows don't. You want warm sunny days to build sugar and cool nights just above freezing to trap it. Get that, and a Vermont hillside goes genuinely incandescent. Get a warm, wet, muggy September and the same trees go a disappointing brown.
Vermont has more sugar maple per acre than almost anywhere, on hillsides that let you see whole mountainsides at once, in a state small enough to drive across.
Peak is usually very late September in the high north and mid-October in the southern valleys. And a local tip: the color is best on an overcast day. Sunshine blows out the reds; flat grey light makes them glow.