What is Google Map Maker?

Google Map Maker allows you to add and update geographic information for millions of users to see in Google Maps and Google Earth. By sharing information about the places you know, like businesses in your town or places in your school campus, you can ensure that the map accurately reflects the world around you. Your updates will be reviewed and once approved, will appear online for people from all over the world to see.
You can make edits using Google Map Maker over 200 countries and regions around the world. Start mapping today!

Google Map Maker gives you a detailed menu to add a variety of establishments, natural and political features.

• Add Natural features and political boundaries to add your favorite beach, political features if you wish to map your city or just your nearby locality
• Add Roads, Rivers, Railways and more to map roads, rivers, railways and more
• Add Building Outlines for adding buildings, towers, monuments and more
• For establishments and everything else choose Add a Place

follow this link http://www.google.com.ng/mapmaker