Plot Points

Q: Any idea what tool is being used to plot the points on this My Map?

https://www.google.com/maps/d/u/0/viewer?mid=11YOIsvGQQc5zebtniv6Zktw4pwOSq2xT&ll=30.367826835123022%2C-97.79521799999999&z=10 

A: Click on this in the top left of image: "This map was created by a user. Learn how to create your own." It will take you here: 

https://support.google.com/mymaps/answer/3024454?hl=en&amp%3Bref_topic=3188329 

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