Some tips about using this webpage:

1. To turn on or off a layer, simply check or uncheck the corresponding box on the left.

2. To see the attribute of a particular place name, click on the particular balloon in the map.

3. If you zoom-in, you will see more village level place names from Google map in the background.

4. You can view satellite image in the background by click on the Satellite button on the top right. Similarly, by click on the Hybrid button on the top right, you will see a combination of map and satellite in the background.

5. Any questions, comments or suggestions should be sent to Dr. Wei Luo by email: wluo@niu.edu.