The tiles below show the circles (loci) of constant impedance magnitude and constant reflection coefficient intersecting at the complex load impedance. This is shown simultaneously on a Smith Chart and the X-Y Impedance (Resistance & Reactance) plane. Either tile can be clicked/dragged to explore the relationship between the two views, or to see how the intersection appears for different cases.
XY View of Zₗ
Smith Chart view of Zₗ

See this page from my SARK100 Firmware pages for the maths behind this.