Plot of the Galactic latitude against the LSR velocity of the Ca ii K or Na i D2 line (or Na i doublet, if blended) along the quasar sightline, for the list of absorbers. The two solid lines at ±345 km s ⁻¹ indicate the velocity cutoff separating Galactic high-velocity cloud complexes from extragalactic absorbers (Wakker & van Woerden 1991). There are several pairs with v _LSR > 600 km s ⁻¹ not shown on the plot.