Currently, you can achieve this by using RotateTransform and clipping the container that holds the RadMap control. For example: <Grid RenderTransformOrigin="0.5,0.5" Width="500" Height="500"> <Grid.RenderTransform> <RotateTransform Angle="45" /> </Grid.RenderTransform> <Grid.Clip> <EllipseGeometry Center="250,250" RadiusX="250" RadiusY="250" /> </Grid.Clip> <telerik:RadMap ZoomLevel="6" Center="37, -120"> <telerik:RadMap.Provider> <telerik:OpenStreetMapProvider /> </telerik:RadMap.Provider> </telerik:RadMap> </Grid>