macadam

Cool, dry weather; relatively but not totally flat terrain; soft running surfaces, like dirt, gravel or macadam.

Rubber tires do not slip on good macadam roads and during our tour it was necessary to use chains on the wheels only a few times.

The name macadam is often used now to denote the material used in making roads.

Mr. Gano stopped meditatively, and struck his blackthorn into the gray "MacAdam" powder.