Okay, I figured out how to get it to work. Need to manually place rivers though. Also, with very large maps, need to change the density of shards and resources. Even with dense magic and dense resources, with large maps it may be hard to find them.
Like I said, the resources are added randomly when the game is started. Likewise so are Champions, Shards and Wildlands. FYI: if you prefer to locate the Wildlands yourself, you can add them to an Elementerra map by using the Stamps then set "Wildlands" to None at game setup.
As I recall, Cephlon was frustrated that adding the resources randomly at start could not be turned off so he was stuck not adding them at all within Elementerra. Though you can add some yourself in the Cartagrapher's Table. Just keep in mind that more will be added at game start. Perhaps you can add some manually in Cartographer's Table and set resources to "Sparse".