$9 Cave Entrance Desert rock 06 Low-poly 3D model by Ertan-Zorlu. Available on CGTrader with 2254 polys and 1127 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 9.06 MB), OBJ (OBJ, filesize: 9.07 MB), DAE (Collada, filesize: 9.09 MB), FBX (Autodesk FBX, filesize: 9.08 MB), MAX (Autodesk 3ds Max, filesize: 9.37 MB), ABC (Alembic, filesize: 9.08 MB), MA (Autodesk Maya, filesize: 9.09 MB), BLEND (Blender, filesize: 9.19 MB), GLTF (glTF, filesize: 16.5 MB)