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Altadena is an unincorporated community of about 40,000 people at the foot of the San Gabriel Mountains, directly north of Pasadena in Los Angeles County. It grew in the late 1800s as a retreat of orchards and estates for wealthy easterners, and later became known for its mix of Craftsman homes, artists, writers and long-established Black and working families.
In January 2025 the Eaton Fire swept through Altadena, destroying thousands of homes, businesses and community landmarks and killing 19 people. Rebuilding is under way, and visitors should be respectful of residents and check which roads, parks and trails are open before they go.
Altadena's great draw is its direct access to the mountains. Trails from the top of Lake Avenue and the Chaney Trail lead to the ruins of the Mount Lowe Railway at Echo Mountain, Millard Canyon Falls and Sunset Ridge, with views across the Los Angeles basin. In December the historic deodar cedars of Christmas Tree Lane are traditionally strung with lights.
A stretch of Santa Rosa Avenue lined with towering deodar cedars planted in the 1880s. Since 1920 the trees have traditionally been strung with lights each December, one of the oldest large outdoor holiday displays in the country. Drive slowly or walk the sidewalks, and check the lighting dates first.
This switchbacking trail climbs about 2.5 miles from the top of Lake Avenue to Echo Mountain, where foundations, gears and rails remain from the Mount Lowe Railway resort of the 1890s. Expect around 1,400 feet of gain and little shade. Start early, carry plenty of water and check for fire-related closures.
This county natural area on Altadena's eastern edge has an easy trail up a rocky wash to Eaton Canyon Falls, a seasonal waterfall that is best in late winter and spring. The original nature center was lost in the 2025 Eaton Fire, and areas have been closed for recovery, so confirm what is open before you go.
A short canyon walk from the Millard Campground area off the Chaney Trail leads to a waterfall of about 50 feet that flows best after winter rains. The route involves some boulder hopping along the stream. Access roads and trails in this part of the Angeles National Forest close at times, so check conditions first.
Starting near the top of the Chaney Trail, this mountain path follows a ridge above Millard Canyon with wide views over Altadena, Pasadena and on clear days downtown Los Angeles. It connects with routes toward Echo Mountain and the Mount Lowe ruins. Go in the morning, and bring sun protection and water.
Founded in the 1880s, this large cemetery on Marengo Avenue has mountain views, mature trees and the graves of many local pioneers, as well as the resting place of science fiction author Octavia E. Butler, which fans often visit. It was damaged in the 2025 fire. Visit quietly during daytime hours.
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California, United States
California, United States
California, United States
California, United States
California, United States
California, United States
California, United States
California, United States
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