Best to use a the latest Chromium based web browser such as Google's Chrome Browser.

Disable any ad or pop-up blockers enabled on your browser.

See also next point to 'allow'..

You must do both of the following..

If you are on a mobile device:

1. 'Enable' (Turn On) GPS 'Location' from your mobile device. Go to 'Settings' > 'Location'.

And

If you are on a mobile device or computer:

2. 'Allow' this site to detect your location sent by your device on initial load.

How? (For web browsers).

On the left of the address bar there is a small (i) for 'info' icon with options e.g. left of https:// (top left). Each browser is slightly different.

Note: If you are on a computer, the location will not be as accurate (as computers do not have GPS built in) i.e. best guess.

Also GPS (usually) requires 'line of sight' to the sky. GPS may not work underground (parking), tunnels, tin (metal) sheds or buildings, underwater etc. If GPS receiption fails your device will fall back to triangulation from mobile cell towers (less accurate). etc

Currently not possible, Coming soon. Source is www.Google.com > Maps.

As above, this data is only as accurate as the public enter into Google maps.

This map alone is not to be used for legal or medical issues, contact your local emergency services if need be i.e. Police, Ambulance or Fire Department e.g..

United States Of America: 911

Australia: 000

UK: 999