Past Events

Historic Preservation 101

Historic Preservation 101

Altadena Heritage’s March “Third Thursday” presentation features a panel of experts who will inform us about the recently adopted Los Angeles County Historic Preservation Ordinance and the Mills Act…

Create the Future of Your Parks – Altadena

Create the Future of Your Parks – Altadena

What will make your family and your neighborhood healthy, happy and out getting physical exercise? Come to our workshop. Together, we’ll create a list of park priorities for our community.

Impacts of El Nino on the Arroyo Seco

Impacts of El Nino on the Arroyo Seco

A great crowd attended Separating Fact from Fear: The Probable Impacts of El Nino on the Arroyo Seco Watershed. Experts, including a Caltech geologist, analyzed the media hype surrounding El Nino, and looked at past El Ninos…

2015 Holiday Celebration

2015 Holiday Celebration

2015 Altadena Heritage Annual
Members Meeting & Holiday Celebration

Sunday, December 6, 3 to 6 PM

Altadena Is 125 Years Old – 2012

Altadena Is 125 Years Old – 2012

Altadena Heritage and Altadena Historical Society, would like to invite all Altadena civic institutions, groups, businesses, schools, faith communities, and individuals to become co-sponsors in commemorating our community’s 125th birthday.

Water Wise Landscaping Workshop

Water Wise Landscaping Workshop

Using a front yard as our main classroom, Altadena Heritage presents a series of workshops on September 12th & 17th & October 24th on transforming your front yard into a beautiful & sustainable garden.

San Gabriels to the Sea:  How Hahamongna Fits In

San Gabriels to the Sea: How Hahamongna Fits In

On February 19, 2015, Altadena Heritage hosted a public forum designed to put Hahamongna Watershed Park — and Los Angeles County’s controversial sediment-removal plan for Devil’s Gate Reservoir — into a larger context: its significance within the Arroyo Seco River System. Because of Hahamongna’s location between the sediment-producing San Gabriel mountains and the lower Arroyo Seco and Los Angeles River, which flows to the Pacific, it plays a vital role in the continued well-being of our most important local river system.