Lyon County Of--commission Of Veteran Affairs 507 1st Ave Rock Rapids, IA 51246 Phone : (712) 472-3867 Business Category Insurance Government Offices-County Stock & Bond Brokers Security Brokers Dealers & Flotation Companies Insurance Carriers Miscellaneous Government Offices & Public Schools Denton Olson 507 1st Ave Rock Rapids, IA 51246 Phone : (712) 472-3867 Business Category Insurance Insurance Agents Brokers & Service