Factory: Florim Creative Design
https://www.florim.com/ru/florim/collection/nature-mood/#gamma 
Collection: Nature Mood
Name: Gracier Mountain peak Rainforest Riverbed Tundra
Formats:
– 60×120 (20 text each) ~1000x2000px
– 120×120 (15 text each) ~2000x2000px
-The material was created without plugins using the VrayMultiSubTex/CoronaMultiMap map (similar to MultiTexture)
-Textures are ready to use with MultiTexture.

Those who work in V-Ray versions lower than 3.1 be careful in the materials in the BRDF section there is Microfaset GTR ( GGX ) if your version is older than 3.1 then the BRDF field will be empty. Choose Blinn Phong or Ward – whichever suits you best
For Corona render it is recommended to install a version of at least 1.5 since the glossiness of materials is configured taking into account PBR

Archive corona vray obj mtl