How to let users select their location or a specific location on the map

I would like to let users fill in a form and at the end of the page, select their location on google maps (either automatically or manually). The problem occurs when user scrolls down to the bottom of the page where they see google map in a box. After they pin point their location, if they want to scroll back up in the page, they might have difficulty to do so, because when they put their finger on the screen and swipe down to go up in the page, it's google maps screen that moves, not the page! So they have to be careful not touch the map area to scroll up. How can I deal with this?