Gravitational watersheds identified in the peculiar velocity field reconstructed from CF4 galaxies and groups. Each watershed is indicated with a blue contour and streamlines. In the case of Laniakea, the basin of attraction found in the CF2 reconstruction is also shown in yellow. The reconstructed overdensity field is represented by four levels of isosurfaces. The center of the reconstruction is indicated by the red, green, and blue arrows of length 50 Mpc h⁻¹, each directing along SGX, SGY, and SGZ.