This widget adds a mobile-optimised Google Static Map Image with a colored pin centered on a destination of your choosing.
Search for "so mobile map widget" and install with the Plugins > Add New back-end page.
… OR …
Follow these steps:
Download zip file.
Upload the zip file via the Plugins > Add New > Upload page … OR … unpack and upload with your favourite FTP client to the /plugins/ folder.
Activate the plugin on the Plugins page.