I have about 30 different raster layers in my modelbuilder. How can I merge them into one layer?
The answer depends on what you are merging and why. For example, if wanted to find the cell by cell maximum or mean and they represent numeric values, the Cell Statistics tool is what you want.
If they are all adjacent tiles of the same layer, the Mosaic to New Raster tool is for that.
Can you provide more information?
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