Rooney Mara Makes Rare Public Outing After Welcoming Son River

Rooney Mara is getting in some exercise! The 35-year-old Oscar-nominated actress was spotted out on a solo hike on Saturday afternoon (January 16) in Los Angeles. PHOTOS: Check out the latest pics of Rooney Mara Rooney tried to keep a low profile in a black sweatshirt and black hoodie paired with sunglasses while staying safe