MILLIMETER AND INFRARED OBSERVATIONS OF SGR1806-20

We present CO(1-0) observations toward the soft gamma-ray repeater SGR 1806-20. We discuss the implications on the distance to the X-ray cou nterpart: AX 1805.7-2025. We also present an upper limit at lambda = 1 .3 mm for the thermal emission from dust and high resolution IRAS maps of the region. SGR 1806-20 is very likely associated with the H II co mplex W31. The G10.0-0.3 supernova remnant (SNR) could be expanding in the very low density region produced by the wind of the bright O9-B2 star recently detected.