20230104 16564900 1.0 FALSE MLRAS_2022 002 -179.147355 179.778455 -14.373855 71.352561 1 0.000 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/2.9.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> WGS_1984_Web_Mercator_Auxiliary_Sphere 20230106 14345800 20230106 14345800 150000000 5000 NAP North American Profile of ISO19115 2003 Esri ArcGIS 12.9.4.32739 The United States, Caribbean, and Pacific Basin Major Land Resource Area Geographic Database The United States, Caribbean, and Pacific Basin Major Land Resource Area Geographic Database 2022-05-11T00:00:00 Version 5.2 United States Department of Agriculture, Natural Resources Conservation Service. 2022. Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin; United States Department of Agriculture, Agriculture Handbook 296. MLRA Geographic Database - digital maps and attributes. United States Department of Agriculture, Natural Resources Conservation Service 100 Centennial Mall North, Room 152 Lincoln Nebraska 68508-3866 US Mail Stop 36 402-437-5499 1-800-833-7352 USDA Natural Resources Conservation Service 1 -179.147355 179.778455 71.352561 -14.373855 The MLRA Geographic Database was prepared for Agriculture Handbook 296 re-publication and is used to support decisions about regional and national agricultural issues. The database and AH 296 help to identify the need for research and resource inventories. The handbook serves as the vehicle for extrapolating the results of research across political boundaries and is the basis for organizing and operating natural resource conservation programs. Today, USDA soil survey offices are organized to serve groups of the major land resource areas defined in this handbook. The handbook was first published in 1965 as an expansion of the 1950 map entitled “Problem Areas in Soil Conservation”, and was designed primarily for use by the Soil Conservation Service. The handbook was updated in 1978, and the second edition was printed in 1981. The third edition was published in 2006. The 2022 publication is the fourth edition. <DIV STYLE="text-align:Left;"><DIV><DIV>Land resource areas used in the United States, Caribbean, and Pacific Basin Major Land Resource Areas (MLRA) Geographic Database serve as the geospatial expression of the map products presented and described in Agriculture Handbook 296 (2022). Land resource categories historically used at state and national levels are land resource units, major land resource areas, and land resource regions (<A href="https://directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=44282.wba">National Soil Survey Handbook, Part 649</A>; <A href="https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053613">Land Resource Hierarchy</A>). Although Agriculture Handbook 296 (AH 296) does not describe land resource units (LRUs) directly, they are the basic units from which major land resource areas are determined. They are also the basic units for state land resource maps. LRUs are commonly but not necessarily coextensive with state general soil map units. LRUs generally are several thousand acres in size. A unit can be one continuous area or several separate areas that are near each other. In 2005, these areas were designated as common resource areas (CRAs) within the Natural Resources Conservation Service (NRCS). Like LRUs, common resource areas are not described in AH 296 and are not shown on the national mapbut are mentioned for historical purposes. Major land resource areas are geographically associated land resource units at a broader scale and higher hierarchical level than LRUs. Land resource regions (LRR) are a group of geographically associated major land resource areasat the highest hierarchical level shown at the continental scale. Identification of these large areas is important in statewide agricultural planning and has value in interstate, regional, and national planning.In AH 296, major land resource areas are generally designated by numbers and identified by a descriptive geographic name. Examples are MLRA 1 (Northern Pacific Coast Range, Foothills, and Valleys), MLRA 154 (South-Central Florida Ridge), and MLRA 230 (Yukon-Kuskokwim Highlands). Some MLRAs are designated by a letter in addition to a number because a previously established MLRA had been divided into smaller, more homogeneous areas, for example, MLRAs 102A, 102B, and 102C. Other MLRAs, especially smaller ones approaching the LRU scale, have been recombined. The use of numbers and letters to identify the newly created MLRAs requires fewer changes in existing information in records and in databases. A few MLRAs consist of two or more parts separated for short distances by other land resource areas. In some places one of the parts is widely separated from the main body of the MLRA and is in an adjoining LRR. The description of the respective MLRA also applies to these outlying parts. The spatial illustration of the MLRAs has been smoothed for the contiguous United States and Alaska to better reflect the scale at which the MLRA resource attributes (climate, soils, land use, vegetation, geology, and physiography) were aggregated for delineation.</DIV></DIV></DIV> United States Department of Agriculture, Natural Resources Conservation Service. 2022. Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin; United States Department of Agriculture, Agriculture Handbook 296. Major Land Resource Area MLRA Land Resource Region LRR Common Resource Area CRA Land Resource Unit LRU Soil Ecoregion National Hierarchy of Ecological UnitsThe United States of America Puerto Rico United States Virgin Islands Republic of Palau Republic of the Marshall Islands Territory of American Samoa Territory of Guam Federated States of Micronesia Commonwealth of Northern Mariana Islands (USA) Ecoregion Soil Land Resource Unit LRU Common Resource Area CRA Land Resource Region LRR Major Land Resource Area MLRA National Hierarchy of Ecological Units The United States of America Puerto Rico United States Virgin Islands Republic of Palau Republic of the Marshall Islands Territory of American Samoa Territory of Guam Federated States of Micronesia Commonwealth of Northern Mariana Islands (USA) 1981-2010 Staff National Soil Survey Center, USDA-Natural Resources Conservation Service Soil Scientist\GIS Specialist 100 Centennial Mall North, Room 152 Lincoln Nebraska 68508-3866 NRCS-NSSC-SoilsHotline@usda.gov US Mail Stop 36 402-437-5376 8:00 am - 5:00 pm There are no access constraints on the use of these data. <DIV STYLE="text-align:Left;"><DIV><DIV>These data have a scale dependency use constraint and should not be applied at map scales generally larger than 3,500,000. Original compilation scales included 1:250,000 USGS base maps for the Conterminous United States and 1:1,000,000 USGS base maps for Alaska.</DIV></DIV></DIV> File Geodatabase Feature Class 5.2 0.000 dataset EPSG 6.18.3(9.3.1.2) 0 Simple FALSE 0 TRUE FALSE MLRAS_2022 Feature Class 0 Major Land Resource Areas version 5.2 None OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. SHAPE Shape Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. MLRA_ID MLRA_ID Integer 4 0 0 A numeric field used to sort the Major Land Resource Areas text field. None The Major Land Resource Area (MLRA) symbols are text based and therefore do not sort properly. The MLRA_ID field is used to overcome this. MLRARSYM MLRARSYM String 5 0 0 Major Land Resourcs Area symbol. None A unique text attribute assigned to each Major Land Resource Area (MLRA) for identification. MLRA_NAME MLRA_NAME String 254 0 0 Major Land Resource Area name. None A descriptive name used to distinguish each Major Land Resource Area (MLRA), usually based on regional landscape features and attributes. LRRSYM LRRSYM String 254 0 0 Land Resource Regiom symbol. None A unique text attribute assigned to each Land Resource Region (LRR) for identification. LRR_NAME LRR_NAME String 254 0 0 Land Resource Region name. None A descriptive name used to distinguish each Land Resource Region (LRR), usually based on location and agricultural production. Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. 20230106 USDA Natural Resources Conservation Service USDA Natural Resources Conservation Service 3F69EB4E-515F-4054-94DC-203BCAEFE2CD