What is the elevation of Y and Z? Y=3250, Z=2950 Y=3200, Z=2900 Y=3250, Z=2900 Y=3000, Z=2850

The answer is "Y=3250, Z=2900".

Explanation:

Please find the image file of the question in the attached file.  

The heights are included in the shape of the contour maps in topographic maps. Its curves with far more intensity and emphasis are known as indexed shapes. The outlines of the list, from which Y is also the one, are also the dark brown contours. This contour line reaches a height of 3250.

Its Z curve is now at a smaller contour of 2900 on the times gone of an elevation data.  It can be understood through gazing downriver, which refers to as the neutral zone that flies through the consecutive V-shaped texture arrangement. It is one of the ways to determine why contours reduce. Because the Y and Z increase separately to 3250 and 2900.