ROI Richland Opportunities, Inc 1100 Silurian Lane Sidney, MT 59270 (406) 488-3341 roisidney.org Supporting people with developmental disabilities since 1979. ROI Richland Opportunities, Inc 1100 Silurian Lane Sidney, MT 59270 (406) 488-3341 roisidney.org Supporting people with developmental disabilities since 1979.