Colourmaps of the sum of the H₂ S(0)–S(7) emission (normalized to 1  × 10^-3 erg cm^-2 s^-1 sr^-1) and contours of the H₂O (1₁₀−1₀₁) emission are overlaid. Red contours are from 0.06 to 19 K km s^-1, 0.09 to 55 K km s^-1, and 0.05 to 7.9 K km s^-1 for L 1157, L 1448, and VLA 1623, respectively. Blue contours for the same sources are from 0.06 to 69 K km s^-1, 0.09 to 23 K km s^-1, and 0.06 to 10 K km s^-1. Offsets in the maps are with respect to the central sources, with coordinates tabulated in Table 1. The black dots indicate the readout positions for the OTF maps.