UC Santa Cruz tree worker Isaac Estrada works high above McLaughlin Drive next to the Core West Parking Structure as the UCSC tree crew removes dead branches from a canyon live oak as they perform ...

See pictures and our review of Marvel at the redwood trees of Muir Woods National Monument in San Francisco.

The Emerald Ash Borer, a destructive and invasive insect, is expected to kill every ash tree in Redwood Falls over the next five years. That means more than 10,000 trees, or roughly 30 percent of the ...