  A straightforward determination of the circular-speed curve vc(R) of the
Milky Way suggests that near the Sun, vc starts to rise approximately linearly
with R. If this result were correct, the Galactic mass density would have to be
independent of radius at R ~> R0. We show that the apparent linear rise in v_c
arises naturally if the true circular-speed curve is about constant or gently
falling at R0 < R ~< 2 R0, but most tracers that appear to be at R ~> 1.25 R0
are actually concentrated into a ring of radius ~1.6 R0.
