A worker clears weeds and brush in lower Arroyo Seco near the Colorado Bridge earlier this year. (Courtesy of the City of Pasadena)

A map of the trails in the Arroyo Seco. (Courtesy of the City of Pasadena)

A worker clears weeds and brush in lower Arroyo Seco near the Colorado Bridge earlier this year. (Courtesy of the City of Pasadena)

Show Caption 1 of 3 A worker clears weeds and brush in lower Arroyo Seco near the Colorado Bridge earlier this year. (Courtesy of the City of Pasadena) Expand

The Eaton fire going from wildfire to devastating conflagration that leveled much of Altadena within hours has added to the urgency of managing wildland areas and controlling vegetation where the region’s natural resources meet residential neighborhoods.

Just a few miles away from what re

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