Idea of Place Marker Icon
It's a logo for Geo-fence and has a "C" shaped line at the base facing upwards with a pointed circle pointing downwards into the "C". There is a circle in the middle of the pointed circle.
This Place Marker icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.