A study of the Arroyo Seco river began in 2005 but was dropped. It’s back to explore connectivity, habitat restoration.

Office of Tangible Space was working on the renovation and expansion of a Greene and Greene–designed house in Altadena then ...

Removing man-made barriers in a major tributary of the Los Angeles River could provide a lifeline for native trout — most, if not all, of which were rescued from a destructive 2020 fire ...

Officials say there is a risk of a landslide above Arroyo Seco Road at milepost 5 which could block the road and potentially cause upstream flooding.

Residents in Arroyo Seco are unable to receive their mail or fix their properties due to the roads being closed, and visitors are unable to beat the summer heat by visiting the river.

Groups hope to one day bring back endangered steelhead trout to the Arroyo Seco. For now, they're trying to improve conditions for the existing freshwater trout.