The Meaning of Hahamongna

The original settlers of the region were sometimes called the Hahamongna Indians. The word means "Flowing Waters, Fruitful Valley" in the native Tongva language.

Hahamongna News


City Wants Your Input About Proposed Park Signs for the Arroyo Seco







Pasadena Now


The public has until October 21, 2016 to participate in a survey to share thoughts and provide input about proposed park signs for the Arroyo Seco as part of the City’s Department of Public Works' goal to create a comprehensive master sign plan for the immensely popular recreational area.

The plan will cover all three main areas of Pasadena’s beautiful Arroyo Seco, including the Hahamongna Watershed Park (Upper Arroyo); the Central Arroyo Seco, and the Lower Arroyo Seco. The master sign program will help define consistent logos and graphic styles, sign materials and locations. A variety of signs will be used to help identify facilities and features, highlight directions and trails, be informative or interpretive and include regulations.

The results of the brief survey will be used to help develop the sign component of the overall Arroyo Seco Master Plan. To participate in the survey, please visit The link will be active through Oct. 21.

Go online to for more information. Or, contact Mr. Loren Pluth, Project Manager, Parks and Landscape, Public Works Department, (626) 744-7329 or

Stay connected to the City of Pasadena! Visit the City of Pasadena online at; follow the city on Twitter @PasadenaGov,, and like the City on Facebook at Or call the Citizen Service Center, 8:00 a.m. to 5:00 p.m., Monday through Friday, at (626) 744-7311.