  We present three dimensional (3D) dust mapping of 12 supernova remnants
(SNRs) in the Galactic anti-center (Galactic longitude $l$ between 150\degr\
and 210\degr) based on a recent 3D interstellar extinction map. The dust
distribution of the regions which cover the full extents in the radio continuum
for the individual SNRs are discussed. Four SNRs show significant spatial
coincidences between molecular clouds (MCs) revealed from the 3D extinction
mapping and the corresponding radio features. The results confirm the
interactions between these SNRs and their surrounding MCs. Based on these
correlations, we provide new distance estimates of the four SNRs, G189.1+3.0
(IC443, $d=1729^{+116}_{-94} \rm \,pc$), G190.9-2.2 ($d=1036^{+17}_{-81} \rm
\,pc$), G205.5+0.5 ($d=941^{+96}_{-94}$ or $1257^{+92}_{-101} \rm \,pc$) and
G213.0-0.6 ($d=1146^{+79}_{-80} \rm \,pc$). In addition, we find indirect
evidences of potential interactions between SNRs and MCs for three other SNRs.
New distance constraints are also given for these three SNRs.
