senate bill 429 - Natural resources: mining; regulations for mining ... Natural resources: mining; regulations for mining of sand and gravel operations; modify. http://www.legislature.mi.gov/mileg.aspx?page=getobject&objectname=2021-SB-0429 Thu, 10 Jun 2021 19:40:28 GMT senate bill 429 referred to Committee on Local Government and Muni... Natural resources: mining; regulations for mining of sand and gravel operations; modify. http://www.legislature.mi.gov/mileg.aspx?page=getobject&objectname=2021-SB-0429 http://www.legislature.mi.gov/mileg.aspx?page=getobject&objectname=2021-SB-0429 Thu, 10 Jun 2021 19:40:28 GMT