Idaho is a state in the United States located in the country's northwest region. Its rugged landscapes and extensive swathes of protected wilderness and outdoor recreation zones are noted. The state's capital, Boise, is nestled in the foothills of the Rocky Mountains and is divided in half by the Boise River, which is known for rafting and fishing. Julia Davis Park, located on the city's riverside, is a downtown green area with a rose garden, museums, and a zoo.