video preview: https://youtu.be/4qj1crMscsU 
Seamless 4K material of gray gravel with stones of 3-7 cm in size. The material was created using the photogrammetry method.
Suitable for long and close shots.
Actual size ~4x4 meters.

Highly detailed PBR material with seamless textures, resolution 4096x4096px:
JPEG Diffuse (Albedo), Roughness. 2048x2048px: Normals, Displacement (EXR 32-bit), AmbientOcclusion (not enabled)
The .max file contains a configured Vray (Corona) material on a 10x10m wavy surface with a displacement height of ~7 centimeters.
faces: 8192
system units of measurement: centimeters
*to maintain correct dimensions when importing from FBX for MAX 2016 and below, import FBX via File/Import menu
*vray 6, corona 7 or later.