The river Yamuna, a major tributary of the Ganges, comes down to Delhi from the Himalayas. Its been coming down for over 50 million years , running its banks during the monsoon , swollen with water and depositing sands on its floodplain. This sandy layer on top is now about 40 meters deep and 100sq km in area - that's a lot.
Ground level high resolution visual information on all land that carries living resource using Google Earth. Uses :
To estimate volumes of living resource like water.
An information base for research, journalism, activists and planners.
An objective record of public information for use in courts.
For schools, colleges and foundations to adopt and protect this valuable resource from pollution and encroachment.
To rectify the data records of government authorities that either do not exist or are flawed.
How to read the maps
There are three stages of maps. Left click on any area of a stage and we get a magnified picture in the next stage. In the third stage the maps show the actual condition of the area, with its encroachments and boundaries marked. There is a facility to calculate any area on the screen with instructions given on the right hand side corner. With right clicks, we get back to previous stages.
More instructions, specific to Ridge and Yamuna Floodplains, are available separately when we go to them.
Formation of group
Yamuna Flood Plains 
