docker volume ls lists empty

I’m using docker version 18.09.2, build 6247962.

I run a container and mounted a host directory to the container.

docker run -it -p 4444:8000 -v c:/py:/azima 27b4b21eeb64 /bin/sh

This created a container and the host directory c:/py has been mounted to /azima.

I can check, create, read files and it is working.

But from another powershell when I run this command docker volume ls.

This shows empty.

Inspecting the container gives this info (if this helps):

"Mounts": [
        {
            "Type": "bind",
            "Source": "/host_mnt/c/py",
            "Destination": "/azima",
            "Mode": "",
            "RW": true,
            "Propagation": "rprivate"
        }
    ],

Why is the volume not listed?

Source: StackOverflow