H i SGPS images of the region around HESS J1626−490 (linear scale in K km s^-1) integrated over the v_LSR ranges −23 to −18 km s^-1 (left) and −31 to −23 km s^-1 (right), respectively. The dashed circle (white) marks the position and radio extension of SNR G335.2+00.1. Also shown are the HESS VHE contours of HESS J1626−490 (green). The arrows (white, labeled D1 and D2) mark two dips, probably due to foreground absorption.