The maps illustrate the significant changes in an area where a hydroelectric dam was built between 1980 and 2000.
With these changes, the area was almost totally transformed with the disappearance of many natural parts, the construction of a new dam and towers, and the transformation of the river.
In 1980, green parts of the area such as forest, architect structure and the area for rare plants and animals were located to the west of the river, but they were totally removed in 2000. Also, irrigated land to the east of the river was demolished to make way for a hotel.
The most significant changes happened in the north of the area. First of all, a hydroelectric dam was built in the north end of the river to stop the stream. There was also a construction of electricity towers around the dam to generate electricity. Besides, the river was widened in its mid-segment to store water. Finally, the village was relocated to the north-east corner of the area. 
The maps illustrate the significant  
changes
 in an  
area
 where a hydroelectric  
dam
  was built
 between 1980 and 2000.
With these  
changes
, the  
area
 was almost  
totally
 transformed with the disappearance of  
many
 natural parts, the construction of a new  
dam
 and towers, and the transformation of the river.
In 1980, green parts of the  
area
 such as forest, architect structure and the  
area
 for rare plants and animals  
were located
 to the west of the  
river
,  
but
 they were  
totally
 removed in 2000.  
Also
, irrigated land to the east of the  
river
  was demolished
 to  
make
 way for a hotel.
The most significant  
changes
 happened in the north of the  
area
.  
First of all
, a hydroelectric  
dam
  was built
 in the north  
end
 of the  
river
 to  
stop
 the stream. There was  
also
 a construction of electricity towers around the  
dam
 to generate electricity.  
Besides
, the  
river
  was widened
 in its mid-segment to store water.  
Finally
, the village  
was relocated
 to the north-east corner of the  
area
.