The National Park Service on Tuesday recommended adding 170,000 acres of wild lands, parks and historical sites to the Santa Monica Mountains National Recreation Area as part of the Rim of the Valley study initiated more than eight years ago.
The addition, which would double the size of the recreation area, includes a narrow stretch along the urban shores of the Los Angeles River and its tributary, the Arroyo Seco; the Verdugo Mountains above Glendale; the San Rafael Hills; foothills of the San Gabriel Mountains and the Simi Hills, Santa Susana and Conejo mountain areas in Ventura County.