Here is a shader set made from actual photos. You will find these ground shaders are a mix of rocks, sand, grass, weeds, leaves and more.
Perfect for any type of scene including nature or outdoor scenes.

What's included

12 shaders
21 partial presets to adjust the bump, normal, displacement mapping and even Sub D levels.
36 partial presets to adjust the tiling. You can adjust the horizontal and vertical individually or together to better fit the mesh you are
apply the shader to.

To apply the shader of choice,

Select the item within the viewport, in the surface tab select the surface you want to change, apply the shader and any partial presets you want to work with.

Images used to make the shaders measure 2048 x 2048 which includes the color map, bump map, and displacement map.