13 July 1998
 

This image shows a large timber logging site at Riau, Sumatra. The dark red areas are forests. Root-like patterns at the upper left and central right of the image are logging tracks.  In these areas, the forest has been harvested and many burnt scars in greenish colour are visible. A main transport channel has been cut across the forest from left to right.

13 April 1999
 

In this image of the same area taken 10 months later, many smoke plumes are visible at various parts of the forest. Very intense fires are burning along the areas near to the main transport channel. At the eastern and western ends of the transport channel, vast areas of the forest have been reduced to burnt scars after the timber harvest.

01 Jun 1999
 

After a rainy period, this image of 1 J une 99 shows the resumption of logging activities as the weather clears. Active burning of logging debris is in progress in many parts of the forest.

21 July 1999
 
 

The forest near the main transport channel has been segmented by the logging activities of the last few months.  Vast areas of forest in the upper half of the image have been cleared. Encroachment of the logging tracks into the lower half of the image poses a threat to the remaining forest area.