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Centered on base 20,000; Zoom = 6.
![[Expand -]](includes/expand_out.png)
![[Expand +]](includes/expand_in.png)
![[Full view]](includes/full.png)
![[Rotate -]](includes/move_back.png)
![[Rotate +]](includes/move_forward.png)
![[View as PNG]](includes/as_png.png)
![[Help]](includes/help.png)