The terms asphalt and <answer>bitumen</answer> are often used interchangeably to mean both natural and manufactured forms of the substance. In American English, asphalt (or asphalt cement) is the carefully refined residue from the distillation process of selected crude oils. Outside the United States, the product is often called <answer>bitumen</answer>. Geologists often prefer the term <answer>bitumen</answer>. Common usage often refers to various forms of asphalt/<answer>bitumen</answer> as "tar", such as at the La Brea Tar Pits. Another archaic term for asphalt/<answer>bitumen</answer> is "pitch".
What is asphalt called outside of the US?
bitumen