Tree Roots on Muddy Ground
Tree roots stretching across muddy ground with rocks
 
Gravel Tiles
It is a tile full of gravel. This texture is suitable for both floor and wall.

By the SBSAR file, users can change the offset, position random, rotation random, edge wear level, grout width, dirt color, dirt amount etc.
Asphalt Road Texture with Yellow Line Road Markings
It is an asphalt or bitumen road with yellow lines as road markings. The markings have a bit wear. Cracks can also be found on this highway.

The SBSAR file let users to change the types of road markings (solid, dashed or mixed), number of yellow lines, frequency of dashes, asphalt brightness, amount and size of cracks, color and size of line etc.
 
Asphalt Texture Covered by Bitumen
The base is an asphalt road which is covered with bitumen of various colours.

Due to weathering, cracks can be found on the surface. The SBSAR file allows the amount and depth of the cracks to be adjusted.
Ground Covered with Gravel
This is a texture made of lots of gravel. It can be used as pavement for roads or to cover mud in backyard.

With your imagination, it could also be a wall texture.