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Hahamongna is that rare spot in the Arroyo Seco at the foot of the San Gabriel Mountains where the mountainous watershed meets the urban plain. Periodically floods roar into this basin. Bounded on the north by the mountains and Jet Propulsion Laboratory and on the south by Devil's Gate Dam, Hahamongna contains five unique habitat zones that only exist in alluvial canyons near the mountains. Most sites like this in Southern California have been destroyed.

Don't let Hahamongna go the way of other lost environmental treasures in Southern California.

Witness the Winter Storms in Hahamongna

Winter Storms

Is this anyplace to put soccer fields?

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.

Haderlein Calls Haha Advocates "Pigs at a Smorgasbord"
Pigs!

Hahamongna Updates

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Athletic Fields
or Nature
at Hahamongna?

See What Pasadenans Really Think

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HWPAC Letter to Mayor Bogaard

Letter

EAC Letter to Mayor Bogaard - 2008

Letter

Flash: Council Eliminates One Soccer Field, Orders Staff to Proceed on Second Field and Parking Lot - Council: One Down

Hahamongna Scene

Hahamongna is the most environmentally sensitive site in the Arroyo Seco and in our region, yet plans are moving forward to construct athletic fields, parking lots, roads and other intrusions in the middle of this rare habitat zone.

In 2003 the Pasadena City Council approved a plan to build several athletic fields, roads and other facilities in the middle of the Hahamongna basin. The plan eventually adopted by the City Council at 1 am shattered a carefuly crafted consensus that had been worked out by an extensive community planning effort that had gone on for six years. At the behest of one council member and without staff, cost or environmental review, another massive field was plopped in the midst of a wetland area on the edge of the Arroyo Seco streamzone. The late night decision went far beyond the community consensus and the analysis in the environmental impact report that the Council had adopted the year before.

The current proposal, now being developed by Pasadena staff, would build a massive multi-purpose athletic field and a parking lot in the middle of the basin just east of the current Oak Grove field. This enormous patch of grass and asphalt would be dubbed "Sycamore Field." Another similar field is planned for the future, further cluttering the natural area and degrading the precious habitat.

This site will keep you up to date on the latest developments in the campaign to preserve the natural richness of the area.