Major Land Resource Areas (MLRA)

Adapted from U.S. Soil Conservation Service 1970 Major Land Resource Areas (MLRA) Series_Name p. 157 Unspecified USGS http://water.usgs.gov/lookup/getspatial?mlra This is a polygon coverage of the Land Resource Regions and Major Land Resource Areas of the conterminous United States. Land resource regions are geographic areas that are characterized by a particular pattern of soils, climate, water resources and land uses. (USDA, Soil Conservation Service, 1981). Major land resource areas are subregions of the land resource regions and comprise smaller homogeneous areas. The scale of this coverage is 1:2,000,000. Note: The Soil Conservation Service now (1995) is called the Natural Resources Conservation Service. Descriptors: Land Resource Regions Major Land Resource Areas United States The primary use of this coverage is for regional and national display rather than specific local data analysis due to the small scale (1:2,000,000) of this coverage. Procedures_Used: This coverage was obtained from EROS Data Center U.S. Geological Survey National Mapping Division, Sioux Falls, SD. Eros Data Center received the digital data files from U.S. Soil Conservation Service, where it was automated from a 1:2,000,000 scale map. A copy of this map, ("Land Resource Regions and Major Land Resource Areas of the United States") is furnished with Agriculture Handbook 296, and is published at a scale of 1:7,500,000. It was first published in 1981, with information current as of 1978. The map was further revised as of January 1, 1984, and is the basis for the digital version of the map. (Bliss, 1989) The map was compiled and digitized at a scale of 1:2,000,000 in the Albers Equal-Area Projection having the following parameters: First parallel: 29 30 00 N Second parallel: 45 30 00 N Central meridian -96 00 00 W Latitude of projection origin: 23 00 00 N False easting: 0.0 False northing: 0.0 Revisions: 1.1 12/91 Enhanced the polygon attribute table. It now includes names of Land Resource Regions and Major Land Resource Areas. Reviews_Applied_to_Data: Has not been reviewed. Related_Spatial_and_Tabular_Data_Sets: At this time, there are no related data sets. Other_References_Cited: Bliss, Norman B. 1989. A National Natural Resource Data Base: Techniques for Linking the Major Land Resource Area map, the 1982 National Resources Inventory and the Soils Interpretations Record Data Bases in a Geographic Information System. Eros Data Center, Sioux Falls, SD. U.S. Department of Agriculture Soil Conservation Service.1981. Land Resource Regions and Major Land Resource Areas of the United States. Agriculture Handbook 296. Washington, D.C Notes: LRR_CODE LRR (Land Resource Region) A NORTHWESTERN FOREST,FORAGE AND SPECIALTY CROP REGION B NORTHWESTERN WHEAT AND RANGE REGION C CA SUBTROPICAL FRUIT,TRUCK AND SPECIALTY CROP REGION D WESTERN RANGE AND IRRIGATED REGION E ROCKY MOUNTAIN RANGE AND FOREST REGION F NORTHERN GREAT PLAINS SPRING WHEAT REGION G WESTERN GREAT PLAINS RANGE AND IRRIGATED REGION H CENTRAL GREAT PLAINS WINTER WHEAT AND RANGE REGION I SOUTHWEST PLATEAUS AND PLAINS RANGE AND COTTON REGION J SOUTHWESTERN PRAIRIES COTTON AND FORAGE REGION K NORTHERN LAKE STATES FOREST AND FORAGE REGION L LAKE STATES FRUIT,TRUCK AND DAIRY REGION M CENTRAL FEED GRAINS AND LIVESTOCK REGION N EAST AND CENTRAL FARMING AND FOREST REGION O MISSISSIPPI DELTA COTTON AND FEED GRAINS REGIONS P S ATLANTIC AND GULF SLOPE CASH CROPS,FOREST,LIVESTK REG R NORTHEASTERN FORAGE AND FOREST REGION S NORTHERN ATLANTIC SLOPE DIVERSIFIED FARMING REGION T ATLANTIC AND GULF COAST LOWLAND FOREST AND CROP REGION U FLORIDA SUBTROPICAL FRUIT,TRUCK CROP AND RANGE REGION MLRA_CODE MLRA (Major Land Resource Area) 1 NORTHERN PACIFIC COAST RANGE, FOOTHILLS AND VALLEYS 10 UPPER SNAKE RIVER LAVA PLAINS AND HILLS 100 ERIE FRUIT AND TRUCK AREA 101 ONTARIO PLAIN AND FINGER LAKES REGION 102A ROLLING TILL PRAIRIE 102B LOESS UPLANDS AND TILL PLAINS 103 CENTRAL IOWA AND MINNESOTA TILL PRAIRIES 104 EASTERN IOWA AND MINNESOTA TILL PRAIRIES 105 NORTHERN MISSISSIPPI VALLEY LOESS HILLS 106 NEBRASKA AND KANSAS LOESS-DRIFT HILLS 107 IOWA AND MISSOURI DEEP LOESS HILLS 108 ILLINOIS AND IOWA DEEP LOESS AND DRIFT 109 IOWA AND MISSOURI HEAVY TILL PLAIN 10A BIG AND LITTLE WOOD RIVER FOOT SLOPES 11 SNAKE RIVER PLAINS 110 NORTHERN ILLINOIS AND INDIANA HEAVY TILL PLAIN 111 INDIANA AND OHIO TILL PLAIN 112 CHEROKEE PRAIRIES 113 CENTRAL CLAYPAN AREAS 114 SOUTHERN ILLINOIS AND INDIANA THIN LOESS AND TILL PLAIN 115 CENTRAL MISSISSIPPI VALLEY WOODED SLOPES 116A OZARK HIGHLAND 116B OZARK BORDER 117 BOSTON MOUNTAINS 118 ARKANSAS VALLEY AND RIDGES 119 OUACHITA MOUNTAINS 11A CENTRAL SNAKE RIVER PLAINS 11B UPPER SNAKE RIVER PLAINS 12 LOST RIVER VALLEYS AND MOUNTAINS 120 KENTUCKY, INDIANA SANDSTONE, SHALE HILLS AND VALLEYS 121 KENTUCKY BLUEGRASS 122 HIGHLAND RIM AND PENNYROYAL 123 NASHVILLE BASIN 124 WESTERN ALLEGHENY PLATEAU 125 CUMBERLAND PLATEAU AND MOUNTAINS 126 CENTRAL ALLEGHENY PLATEAU 127 EASTERN ALLEGHENY PLATEAU AND MOUNTAINS 128 SOUTHERN APPALACHIAN RIDGES AND VALLEYS 129 SAND MOUNTAIN 13 EASTERN IDAHO PLATEAUS 130 BLUE RIDGE 131 SOUTHERN MISSISSIPPI VALLEY ALLUVIUM 133A SOUTHERN COASTAL PLAIN 133B WESTERN COASTAL PLAIN 134 SOUTHERN MISSISSIPPI VALLEY SILTY UPLANDS 135 ALABAMA, MISSISSIPPI AND ARKANSAS BLACKLAND PRAIRIE 136 SOUTHERN PIEDMONT 137 CAROLINA AND GEORGIA SAND HILLS 138 NORTH-CENTRAL FLORIDA RIDGE 139 EASTERN OHIO TILL PLAIN 14 CENTRAL CALIFORNIA COASTAL VALLEYS 140 GLACIATED ALLEGHENY PLATEAU AND CATSKILL MOUNTAINS 141 TUGHILL PLATEAU 142 ST. LAWRENCE-CHAMPLAIN PLAIN 143 NORTHEASTERN MOUNTAINS 144A NEW ENGLAND AND EASTERN NEW YORK UPLAND,SOUTHERN PART 144B NEW ENGLAND AND EASTERN NEW YORK UPLAND,NORTHERN PART 145 CONNECTICUT VALLEY 146 AROOSTOOK AREA 147 NORTHERN APPALACHIAN RIDGES AND VALLEYS 148 NORTHERN PIEDMONT 149A NORTHERN COASTAL PLAIN 149B LONG ISLAND-CAPE COD COASTAL LOWLAND 15 CENTRAL CALIFORNIA COAST RANGE 150A GULF COAST PRAIRIES 150B GULF COAST SALINE PRAIRIES 151 GULF COAST MARSH 152A EASTERN GULF COAST FLATWOODS 152B WESTERN GULF COAST FLATWOODS 153A ATLANTIC COAST FLATWOODS 153B TIDEWATER AREA 153C MID-ATLANTIC COASTAL PLAIN 154 SOUTH-CENTRAL FLORIDA RIDGE 155 SOUTHERN FLORIDA FLATWOODS 156A FLORIDA EVERGLADES AND ASSOCIATED AREAS 156B SOUTHERN FLORIDA LOWLANDS 16 CALIFORNIA DELTA 17 SACRAMENTO AND SAN JOAQUIN VALLEYS 18 SIERRA NEVADA FOOTHILLS 19 SOUTHERN CALIFORNIA COASTAL PLAIN 2 WILLAMETTE AND PUGET SOUND VALLEYS 20 SOUTHERN CALIFORNIA MOUNTAINS 21 KLAMATH AND SHASTA VALLEYS AND BASINS 22 SIERRA NEVADA RANGE 23 MALHEUR HIGH PLATEAU 24 HUMBOLDT AREA 25 OWYHEE HIGH PLATEAU 26 CARSON BASIN AND MOUNTAINS 27 FALLON-LOVELOCK AREA 28A GREAT SALT LAKE AREA 28B CENTRAL NEVADA BASIN AND RANGE 29 SOUTHERN NEVADA BASIN AND RANGE 3 OLYMPIC AND CASCADE MOUNTAINS 30 SONORAN BASIN AND RANGE 31 IMPERIAL VALLEY 32 NORTHERN INTERMOUNTAIN DESERTIC BASINS 33 SEMIARID ROCKY MOUNTAINS 34 CENTRAL DESERTIC BASINS, MOUNTAINS, AND PLATEAUS 35 COLORADO AND GREEN RIVER PLATEAUS 36 NEW MEXICO AND ARIZONA PLATEAUS AND MESAS 37 SAN JUAN RIVER VALLEY MESAS AND PLATEAUS 39 ARIZONA AND NEW MEXICO MOUNTAINS 4 CALIFORNIA COASTAL REDWOOD BELT 40 CENTRAL ARIZONA BASIN AND RANGE 41 SOUTHEASTERN ARIZONA BASIN AND RANGE 42 SOUTHERN DESERTIC BASINS,PLAINS AND MOUNTAINS 43 NORTHERN ROCKY MOUNTAINS 44 NORTHERN ROCKY MOUNTAIN VALLEYS 46 NORTHERN ROCKY MOUNTAIN FOOTHILLS 47 WASATCH AND UINTA MOUNTAINS 48A SOUTHERN ROCKY MOUNTAINS 48B SOUTHERN ROCKY MOUNTAIN PARKS 49 SOUTHERN ROCKY MOUNTAIN FOOTHILLS 5 SISKIYOU-TRINITY AREA 51 HIGH INTERMOUNTAIN VALLEYS 52 BROWN GLACIATED PLAIN 53A NORTHERN DARK BROWN GLACIATED PLAINS 53B CENTRAL DARK BROWN GLACIATED PLAINS 53C SOUTHERN DARK BROWN GLACIATED PLAINS 54 ROLLING SOFT SHALE PLAIN 55A NORTHERN BLACK GLACIATED PLAINS 55B CENTRAL BLACK GLACIATED PLAINS 55C SOUTHERN BLACK GLACIATED PLAINS 56 RED RIVER VALLEY OF THE NORTH 57 NORTHERN MINNESOTA GRAY DRIFT 58A NORTHERN ROLLING HIGH PLAINS, NORTHERN PART 58B NORTHERN ROLLING HIGH PLAINS, SOUTHERN PART 58C NORTHERN ROLLING HIGH PLAINS, NORTHEASTERN PART 58D NORTHERN ROLLING HIGH PLAINS, EASTERN PART 6 CASCADE MOUNTAINS, EASTERN SLOPE 60A PIERRE SHALE PLAINS AND BADLANDS 60B PIERRE SHALE PLAINS, NORTHERN PART 61 BLACK HILLS FOOT SLOPES 62 BLACK HILLS 63A NORTHERN ROLLING PIERRE SHALE PLAINS 63B SOUTHERN ROLLING PIERRE SHALE PLAINS 64 MIXED SANDY AND SILTY TABLELAND 65 NEBRASKA SAND HILLS 66 DAKOTA-NEBRASKA ERODED TABLELAND 67 CENTRAL HIGH PLAINS 69 UPPER ARKANSAS VALLEY ROLLING PLAINS 7 COLUMBIA BASIN 70 PECOS-CANADIAN PLAINS AND VALLEYS 71 CENTRAL NEBRASKA LOESS HILLS 72 CENTRAL HIGH TABLELAND 73 ROLLING PLAINS AND BREAKS 74 CENTRAL KANSAS SANDSTONE HILLS 75 CENTRAL LOESS PLAINS 76 BLUESTEM HILLS 77 SOUTHERN HIGH PLAINS 78 CENTRAL ROLLING RED PLAINS 79 GREAT BEND SAND PLAINS 8 COLUMBIA PLATEAU 80A CENTRAL ROLLING RED PRAIRIES 80B TEXAS NORTH-CENTRAL PRAIRIES 81 EDWARDS PLATEAU 82 TEXAS CENTRAL BASIN 83A NORTHERN RIO GRANDE PLAIN 83B WESTERN RIO GRANDE PLAIN 83C CENTRAL RIO GRANDE PLAIN 83D LOWER RIO GRANDE VALLEY 84A CROSS TIMBERS 84B WEST CROSS TIMBERS 84C EAST CROSS TIMBERS 85 GRAND PRAIRIE 86 TEXAS BLACKLAND PRAIRIE 87 TEXAS CLAYPAN AREA 88 NORTHERN MINNESOTA GLACIAL LAKE BASINS 9 PALOUSE AND NEZ PERCE PRAIRIES 90 CENTRAL WISCONSIN AND MINNESOTA THIN LOESS AND TILL 91 WISCONSIN AND MINNESOTA SANDY OUTWASH 92 SUPERIOR LAKE PLAIN 93 SUPERIOR STONY AND ROCK LOAMY PLAINS AND HILLS 94A NORTHERN MICHIGAN AND WISCONSIN SANDY DRIFT 94B MICHIGAN EASTERN UPPER PENINSULA SANDY DRIFT 95A NORTHEASTERN WISCONSIN DRIFT PLAIN 95B SOUTHERN WISCONSIN AND NORTHERN ILLINOIS DRIFT PLAIN 96 WESTERN MICHIGAN AND NORTHEASTERN WISCONSIN FRUIT BELT 97 SOUTHWESTERN MICHIGAN FRUIT AND TRUCK BELT 98 SOUTHERN MICHIGAN AND NORTHERN INDIANA DRIFT PLAN 99 ERIE-HURON LAKE PLAIN 0000 ground condition Has not been reviewed Unknown -128.07002717 -65.25698378 48.26194027 22.67774911 None Land Resource Regions Major Land Resource Areas inlandWaters None Conterminous United States None None None None None Accuracy is good at 1:2,000,000 or smaller. http://water.usgs.gov/GIS/browse/mlra.gif Illlustration of data set GIF None Unclassified None dgux, 5.4R3.10, AViiON UNIX, ARC/INFO version 7.0.4 See Entity_Attribute_Information See Explanation Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. Polygon topology present. approximately 1000 meters Resolution as reported Unspecified 0000 Unspecified 2,000,000 Unspecified 0000 Unspecified Unspecified Unspecified IMPORT COVER US48LRA US48LRA None 19901022 1408 None COPY /DATA4/DLG_TO_ARC/SOILS/US48LRA None 19901022 1430 None IMPORT COVER USA_SOILS.E00 USA_SOILS None 19910723 1155 None COPY /HOME/ZEPHER/THELIN/NAWQA/USA_SOILS SOILS None 19911121 0857 None COPY /HOME/ZEPHER/NAOMI/COV/SOILS None 19911211 1409 None COPY SOILS COV.7.5M/SOILS None 19911218 0935 None CLEAN SOILS # 50 50 POLY None 19920102 2123 None ARCEDIT /HOME/ZEPHER/NAWQA/COV.7.5M/SOILS None 19920103 1242 None BUILD SOILS POLY None 19920103 1248 None COPY SOILS /HOME/ZEPHER/NAWQA/NATSYN/SOILS7_5M None 19920219 0748 None DOCUMENT SOILS7_5M DELETE NAKAGAKI None 19920219 0805 None DOCUMENT SOILS7_5M UPDATE NAKAGAKI None 19920220 1609 None DOCUMENT SOILS7_5M UPDATE NAKAGAKI None 19920220 1616 None COPY ../NATSYN/SOILS7_5M None 19920221 1205 None COPY ../NATSYN2/SOILS7_5M SOILS2_0M None 19920305 1039 None DOCUMENT SOILS2_0M UPDATE NAKAGAKI None 19920305 1438 None DOCUMENT SOILS2_0M UPDATE NAKAGAKI None 19920305 1451 None DOCUMENT SOILS2_0M UPDATE NAKAGAKI None 19920309 1358 None DOCUMENT SOILS2_0M UPDATE NAKAGAKI None 19920316 1118 None EXTERNALALL None 19920406 0749 None EXTERNALALL None 19970514 1201 None KJHITT RENAME SOILS2_0M MLRA None 19970514 1351 None KJHITT DOCUMENT MLRA DELETE KJHITT None 19970514 1351 None KJHITT DOCUMENT MLRA COPY /SRV3/KJH/TEMP2/MLRA KJHITT None 19970514 1352 None KJHITT DOCUMENT MLRA UPDATE KJHITT None 19970514 1356 None KJHITT LABELERRORS MLRA None 19970514 1358 None Vector Point 329 String 866 GT-polygon composed of chains 330 MLRA.PAT Polygon Attribute Table AREA Area of polygon in square coverage units Computed Positive real numbers unspecified unspecified PERIMETER Perimeter of polygon in coverage units Computed Positive real numbers unspecified unspecified MLRA# Internal feature number Computed Sequential unique positive integer unspecified unspecified MLRA-ID User-assigned feature number User-defined Integer unspecified unspecified LRR_CODE Land Resource Region Code AGRICULTURE HANDBOOK 296 A-P,R-U unspecified unspecified MLRA_CODE Major Land Resource Area Code AGRICULTURE HANDBOOK 296 Positive whole numbers, some followed by an alpha unspecified unspecified LRR Name of Land Resource Region AGRICULTURE HANDBOOK 296 alpha unspecified unspecified MLRA Name of Major Land Resource Area AGRICULTURE HANDBOOK 296 alpha unspecified unspecified There are four attributes in the PAT file: LRR_CODE, MLRA_CODE, LRR and MLRA. LRR_CODE contains the Land Resource Region Code. They are designated by a capital letter, and identified by a descriptive name, found in LRR. MLRA_CODE contains the Major Land Resource Area code. It consists of a numerical value, some followed by a letter. The descriptive name is stored in MLRA. The majority of the MLRA classifications can be found in Agriculture Handbook 296. There are, however, three categories that were added by EROS Data Center during automation. These classes are listed below: MLRA_CODE MLRA 10A BIG AND LITTLE WOOD RIVER FOOT SLOPES 11A CENTRAL SNAKE RIVER PLAINS 11B UPPER SNAKE RIVER PLAINS Refer to the 'notes' section for a complete listing of the various land resource region/major land resource area classifications. Not Available U.S. Geological Survey Ask USGS - Water Webserver Team mailing

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Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Export Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/mlra.e00.gz SDTS Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/mlra.sdts.tgz None. This dataset is provided by USGS as a public service. 20041108 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

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Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+mlra FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998