| Railroad PitWoodbury, IAMSHA 1301810 | Construction Sand and GravelSurface | AbandonedStatus date: 09/25/1979 | Woodbury County Highway DepartmentReported operatorWoodbury CountyReported controller | Neither history importedView source coverage → |
| Ramsey PitMadison, IAMSHA 1301929 | Construction Sand and GravelSurface | AbandonedStatus date: 03/10/1986 | R & A Sand & ConcreteReported operatorR & A Sand & ConcreteReported controller | Neither history importedView source coverage → |
| Rassmussen QuarryBuchanan, IAMSHA 1300131 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 07/22/1985 | Paul Niemann Construction CompanyReported operatorJames L NiemannReported controller | Neither history importedView source coverage → |
| Raymond MineBlack Hawk, IAMSHA 1301760 | Crushed, Broken Limestone NECUnderground | AbandonedStatus date: 03/22/1985 | Welp & Mc Carten IncReported operatorJames W WeaverReported controller | Neither history importedView source coverage → |
| Raymond QuarryBlack Hawk, IAMSHA 1300445 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 03/22/1985 | Welp & Mc Carten IncReported operatorJames W WeaverReported controller | Neither history importedView source coverage → |
| Ready Mix Sand PitDelaware, IAMSHA 1300669 | Construction Sand and GravelSurface | AbandonedStatus date: 07/03/1985 | Dyersville Ready Mix IncReported operatorTony ThierReported controller | Neither history importedView source coverage → |
| Reaman PitSac, IAMSHA 1301876 | Construction Sand and GravelSurface | AbandonedStatus date: 09/25/1979 | Sac County Highway DepartmentReported operatorSac CountyReported controller | Neither history importedView source coverage → |
| REASNOR SANDJasper, IANear ReasnorMSHA 1300772 | Construction Sand and GravelSurface | AbandonedStatus date: 10/23/2003 | Martin Marietta Aggregates Of Southern Iowa IncReported operatorMartin Marietta Materials IncReported controller | Production / employmentSafety recordsView source coverage → |
| Redfield PitDallas, IANear RedfieldMSHA 1300897 | Clay, Ceramic, Refractory Mnls.Surface | AbandonedStatus date: 08/28/2020 | Glen-Gery Corporation Reported operatorBrickworks LimitedReported controller | Production / employmentSafety recordsView source coverage → |
| Redfield PlantDallas, IAMSHA 1300335 | Common Clays NECFacility | AbandonedStatus date: 05/21/1982 | Can-Tex IndustriesReported operatorHarsco CorpReported controller | Neither history importedView source coverage → |
| Red Oak PitMontgomery, IAMSHA 1301204 | Construction Sand and GravelSurface | AbandonedStatus date: 06/19/1980 | Hallett Construction CompanyReported operatorHallett Construction CompanyReported controller | Neither history importedView source coverage → |
| Red Oak QuarryMontgomery, IANear Red OakMSHA 1302278 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 04/24/2024 | Crushed Aggregate Products LLCReported operatorAlfredo S GarciaReported controller | Production / employmentSafety recordsView source coverage → |
| Regan QuarryAllamakee, IAMSHA 1300867 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 10/02/1981 | Cooney Construction CompanyReported operatorSchulze Leland FReported controller | Neither history importedView source coverage → |
| Reicks QuarryHoward, IAMSHA 1301857 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 07/18/1985 | Bruening Rock Products IncReported operatorGreg BrueningReported controller | Neither history importedView source coverage → |
| Reissner Sand & Gravel PitChickasaw, IAMSHA 1302027 | Construction Sand and GravelSurface | AbandonedStatus date: 09/23/1985 | Paul Niemann Construction CompanyReported operatorJames L NiemannReported controller | Neither history importedView source coverage → |
| Reiter QuarryDubuque, IAMSHA 1301781 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 07/03/1985 | Dyersville Ready Mix IncReported operatorTony ThierReported controller | Neither history importedView source coverage → |
| Remsburg PitCarroll, IAMSHA 1301749 | Construction Sand and GravelSurface | AbandonedStatus date: 09/25/1979 | Carroll County Highway DepartmentReported operatorCarroll County-IaReported controller | Neither history importedView source coverage → |
| Replogle Sand PitMarshall, IAMSHA 1301665 | Construction Sand and GravelSurface | AbandonedStatus date: 02/08/1979 | Concrete IncReported operatorWeaver PaulReported controller | Neither history importedView source coverage → |
| Richardson PitGreene, IAMSHA 1301678 | Construction Sand and GravelSurface | AbandonedStatus date: 09/10/1979 | Greene County Highway DepartmentReported operatorGreene County-IaReported controller | Neither history importedView source coverage → |
| RiehmAllamakee, IANear New AlbinMSHA 1302396 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 03/27/2024 | Riehm Construction CoReported operatorTom M RiehmReported controller | Production / employmentSafety recordsView source coverage → |
| Riehms QuarryAllamakee, IAMSHA 1301831 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 07/17/1985 | Cooney Construction CompanyReported operatorSchulze Leland FReported controller | Neither history importedView source coverage → |
| Riekena PitHardin, IAMSHA 1301949 | Construction Sand and GravelSurface | AbandonedStatus date: 05/20/1985 | Weaver Construction CompanyReported operatorJames W WeaverReported controller | Neither history importedView source coverage → |
| Riekena QuarryHardin, IAMSHA 1301979 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 03/06/1987 | Larry J RiekenaReported operatorLarry J RiekenaReported controller | Neither history importedView source coverage → |
| RIP RAP #1Clarke, IAMSHA 1302242 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 01/17/2001 | Martin Marietta AggregatesReported operatorMartin Marietta Materials IncReported controller | Production / employmentSafety recordsView source coverage → |
| Rip Rap #1Adair, IANear GreenfieldMSHA 1302379 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 04/12/2024 | Schildberg ConstructionReported operatorMark SchildbergReported controller | Production / employmentSafety recordsView source coverage → |
| RIP RAP #2Polk, IAMSHA 1302247 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 03/05/2002 | Martin Marietta Aggregates Of Southern Iowa IncReported operatorMartin Marietta Materials IncReported controller | Production / employmentSafety recordsView source coverage → |
| Rip Rap #2Adair, IANear GreenfieldMSHA 1302380 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 06/13/2022 | Schildberg ConstructionReported operatorMark SchildbergReported controller | Production / employmentSafety recordsView source coverage → |
| Rip Rap #3Adair, IANear GreenfieldMSHA 1302410 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 04/12/2024 | Schildberg Construction Reported operatorMark SchildbergReported controller | Production / employmentSafety recordsView source coverage → |
| River DredgingDubuque, IAMSHA 1300729 | Construction Sand and GravelSurface | AbandonedStatus date: 08/21/1987 | Aggregate Materials CompanyReported operatorT M Flynn; T L FlynnReported controller | Neither history importedView source coverage → |
| RIVERSIDE SAND PLANT & PITWashington, IAMSHA 1301927 | Construction Sand and GravelSurface | AbandonedStatus date: 01/27/1997 | River Products Company IncReported operatorThomas R ScottReported controller | Neither history importedView source coverage → |