Christmas Tree Lane Altadena 2025. The lane consists of approximately a mile of. Located in altadena, california, christmas tree lane has been listed on the national register of historic places since 1990.
Christmas tree lane in altadena is celebrating its 104th year of this large scale christmas light display, making it the longest running in the world! Visitors simply need to slowly roll under the decorated deodar cedars, trees that glitter block after block after block, while marveling at the vintage and vivacious display.