Is there a way to locate Strategic Resources on the map?

Solution 1:

You can turn on the "resource icon" overlay which will put up floating icons showing what all the resources are (Ctrl+R, or click on the "toggle map options" button to the left of the mini-map and tick "resource icons").
If you then zoom out you should be able to see where the resources are quite easily, and what they are.

Solution 2:

Whoward's strategic view Overlay Resources mod is useful for this: http://www.picknmixmods.com/mods/f2968890-fe71-41d4-b609-805097365935/mod.html

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