HI @ptplans,
Are you working in a Windows or Mac version of AutoCAD?
In AutoCAD 2018 (Windows) you can use the 3D Modeling workspace to see the Surface tab on the Ribbon.

On the Mac version it is a bit different. This is what it looks like on AutoCAD 2018 for Mac. If I click on the modeling tab I can see the Surface Palette.

Please select the Accept as Solution button if my post solves your issue or answers your question.
John Vellek
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