How can you create a polygon in QGIS which covers a certain elevation range?

Question

I am trying to isolate 3 different elevation ranges in QGIS (200-1200m, 1200-2200m, 2200-3200). I have made contour lines for each elevation but I want to make them into separate polygons so I can present data for each elevation range individually. Is there any way to do this?

Answer 1

You can make polygons of contours directly.

Then use Extract By Expression with an expression such as:

"ELEV_MIN" >= 1420 and "ELEV_MIN" < 1500