HI data exclusively from the Arecibo telescope with 33 angular resolution. Top three panels: The H I velocity-integrated emission (zeroth moment), intensity-weighted velocity (first moment), and intensity-weighted velocity dispersion (second moment) maps of the Leo Triplet. In the left panel, contours and also the color image show the zeroth moment map. The integration range is from V_HEL = 506.7 to 1125.1 km s⁻¹. The contour levels are set to (3, 6, 9, 12, 18, 24, 30, 36, 42, 48, 54, 100, 150, 200, …, 600) × 0.07 Jy beam⁻¹ km s⁻¹. In the middle and right panels, the color image shows the first and second moment maps. The contours overlaid are the same as the ones in the left panel. The galaxies NGC 3628, M 65, and M 66 are also labeled in both panels and a filled ellipse in the lower left shows the synthesized beam. Bottom three panels: Same as the top panels, but exclusively for the plume. The integration range is from V_HEL = 795.3 to 939.5 km s⁻¹. The contour levels are set to (3, 15, 27, 39, 51, 63, 75, 87, 99, 111, 133, 200, 250, 300, …, 600) × 0.03 Jy beam⁻¹ km s⁻¹. The red line in each panel illustrates the 50 kpc scale at a distance of 11.3 Mpc.