Mediums that can be used range from gravel to bedrock.

This time at the front of the church, from gravel, to the wooden porch, a hand on the doorknob, and it opens.

I made the hall from clay, gravel and straw, all packed together to make thick walls.

The road went from gravel to asphalt as it passed through the field.

In 2007, the run off area at the second chicane was changed from gravel to asphalt.

The highway itself took several years to transition from gravel to actual pavement.

One unique feature is a wine cellar from gravel rather than concrete.

The lime obtained from sand and gravel is used in buildings construction work.

They also help protect the foot from glass, gravel, and other debris.

Shortly beyond the Baker house the road changed from gravel to asphalt.