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 in a face mask for her hike.

Saturday’s outing marks one of the first times Rooney has been photographed since becoming a mom.

Rooney and fiance Joaquin Phoenix welcomed their first child a few months ago.

Rooney and the 46-year-old actor‘s newborn son is named River, after his late brother River Phoenix, who passed away in 1993 from a drug overdose.

The new parents opened up about their son for the first time in a new essay.