Ecoregions - Province
Ecoregions are ecosystems of regional extent. Bailey's ecoregions distinguish areas that share common climatic and vegetation characteristics. A four-level hierarchy is used to differentiate the ecoregions, with the broadest classification being the domain.  Domains are groups of related climates and are differentiated based on precipitation and temperature. There are four domains used for worldwide ecoregion classification and all four appear in the United States: the polar domain, the humid temperate domain, the dry domain, and the humid tropical domain.  Divisions represent the climates within domains and are differentiated based on precipitation levels and patterns as well as temperature. Divisions are subdivided into provinces, which are differentiated based on vegetation or other natural land covers. Mountainous areas that exhibit different ecological zones based on elevation are identified at the province level. The finest level of detail is described by subregions, called sections, which are subdivisions of provinces based on terrain features.

The purpose of ecological land classification is to provide information for both the development of resources and the conservation of the environment. Government and private land managers use this information to estimate ecosystem productivity, to determine probable responses to land management practices, and to address environmental issues over large areas, such as air pollution, forest disease, or threats to biodiversity. This map layer was compiled by the USDA Forest Service.

The Bailey's Ecoregions and Subregions of the United States, Puerto Rico, and the U.S. Virgin Islands map layer shows the ecoregion domains, divisions, provinces, and sections for this area. Further information on domains, divisions, and provinces is available from the USDA Forest Service Rocky Mountain Research Station page describing Ecoregions of the United States, and detailed information on sections is available through the USDA Forest Service page, Ecological Subregions of the United States.
[{'name': 'OBJECTID', 'type': 'esriFieldTypeOID', 'alias': 'OBJECTID', 'domain': None}, {'name': 'Shape', 'type': 'esriFieldTypeGeometry', 'alias': 'Shape', 'domain': None}, {'name': 'ECOCODE', 'type': 'esriFieldTypeString', 'alias': 'ECOCODE', 'length': 5, 'domain': None}, {'name': 'DOMAIN', 'type': 'esriFieldTypeString', 'alias': 'DOMAIN', 'length': 100, 'domain': None}, {'name': 'DIVISION', 'type': 'esriFieldTypeString', 'alias': 'DIVISION', 'length': 100, 'domain': None}, {'name': 'PROVINCE', 'type': 'esriFieldTypeString', 'alias': 'PROVINCE', 'length': 100, 'domain': None}, {'name': 'SECTION', 'type': 'esriFieldTypeString', 'alias': 'SECTION', 'length': 100, 'domain': None}]
[{'name': 'FDO_Shape', 'fields': 'Shape', 'isAscending': True, 'isUnique': False, 'description': ''}]
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{'renderer': {'type': 'uniqueValue', 'field1': 'PROVINCE', 'field2': None, 'field3': None, 'defaultSymbol': None, 'defaultLabel': None, 'uniqueValueInfos': [{'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [0, 255, 197, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Adirondack-New England Mixed Forest-Coniferous Forest-Alpine Meadow Province', 'label': 'Adirondack-New England Mixed Forest-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 158, 232, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'American Semi-Desert and Desert Province', 'label': 'American Semi-Desert and Desert Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [230, 127, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Arizona-New Mexico Mountains Semi-Desert-Open Woodland-Coniferous Forest-Alpine Meadow Province', 'label': 'Arizona-New Mexico Mountains Semi-Desert-Open Woodland-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [132, 0, 168, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Black Hills Coniferous Forest Province', 'label': 'Black Hills Coniferous Forest Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [252, 179, 189, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'California Coastal Chapparral Forest and Shrub Province', 'label': 'California Coastal Chapparral Forest and Shrub Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [189, 0, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'California Coastal Range Open Woodland-Shrub-Coniferous Forest-Meadow Province', 'label': 'California Coastal Range Open Woodland-Shrub-Coniferous Forest-Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [168, 112, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'California Coastal Steppe-Mixed Forest-Redwood Forest Province', 'label': 'California Coastal Steppe-Mixed Forest-Redwood Forest Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 255, 200, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'California Dry Steppe Province', 'label': 'California Dry Steppe Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [156, 156, 156, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Cascade Mixed Forest-Coniferous Forest-Alpine Meadow Province', 'label': 'Cascade Mixed Forest-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [59, 199, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Central Appalachian Broadleaf Forest-Coniferous Forest-Meadow Province', 'label': 'Central Appalachian Broadleaf Forest-Coniferous Forest-Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 143, 199, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Chihuahuan Semi-Desert Province', 'label': 'Chihuahuan Semi-Desert Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 209, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSNull', 'color': [110, 110, 110, 255], 'width': 0}}, 'value': 'Colorado Plateau Semi-Desert Province', 'label': 'Colorado Plateau Semi-Desert Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [186, 255, 190, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Eastern Broadleaf Forest (Continental) Province', 'label': 'Eastern Broadleaf Forest (Continental) Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [85, 255, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Eastern Broadleaf Forest (Oceanic) Province', 'label': 'Eastern Broadleaf Forest (Oceanic) Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 212, 232, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Everglades Province', 'label': 'Everglades Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 145, 145, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Great Plains Steppe Province', 'label': 'Great Plains Steppe Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [190, 255, 232, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Great Plains Steppe and Shrub Province', 'label': 'Great Plains Steppe and Shrub Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 211, 127, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Great Plains-Palouse Dry Steppe Province', 'label': 'Great Plains-Palouse Dry Steppe Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 112, 223, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSNull', 'color': [110, 110, 110, 255], 'width': 0}}, 'value': 'Intermountain Semi-Desert Province', 'label': 'Intermountain Semi-Desert Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [161, 120, 79, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Intermountain Semi-Desert and Desert Province', 'label': 'Intermountain Semi-Desert and Desert Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [0, 156, 173, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Laurentian Mixed Forest Province', 'label': 'Laurentian Mixed Forest Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [0, 115, 168, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Lower Mississippi Riverine Forest Province', 'label': 'Lower Mississippi Riverine Forest Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [240, 120, 120, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSNull', 'color': [110, 110, 110, 255], 'width': 0}}, 'value': 'Middle Rocky Mountain Steppe-Coniferous Forest-Alpine Meadow Province', 'label': 'Middle Rocky Mountain Steppe-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [197, 0, 255, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSNull', 'color': [110, 110, 110, 255], 'width': 0}}, 'value': 'Nevada-Utah Mountains-Semi-Desert-Coniferous Forest-Alpine Meadow Province', 'label': 'Nevada-Utah Mountains-Semi-Desert-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [115, 0, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSNull', 'color': [110, 110, 110, 255], 'width': 0}}, 'value': 'Northern Rocky Mountain Forest-Steppe-Coniferous Forest-Alpine Meadow Province', 'label': 'Northern Rocky Mountain Forest-Steppe-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [105, 117, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Ouachita Mixed Forest - Meadow Province', 'label': 'Ouachita Mixed Forest - Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [176, 148, 84, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSNull', 'color': [110, 110, 110, 255], 'width': 0}}, 'value': 'Outer Coastal Plain Mixed Forest Province', 'label': 'Outer Coastal Plain Mixed Forest Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [38, 115, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSNull', 'color': [110, 110, 110, 255], 'width': 0}}, 'value': 'Ozark Broadleaf Forest - Meadow Province', 'label': 'Ozark Broadleaf Forest - Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [56, 168, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Pacific Lowland Mixed Forest Province', 'label': 'Pacific Lowland Mixed Forest Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [201, 201, 173, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Prairie Parkland (Subtropical) Province', 'label': 'Prairie Parkland (Subtropical) Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [245, 245, 122, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Prairie Parkland (Temperate) Province', 'label': 'Prairie Parkland (Temperate) Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [205, 205, 38, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Sierran Steppe-Mixed Forest-Coniferous Forest-Alpine Meadow Province', 'label': 'Sierran Steppe-Mixed Forest-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [255, 190, 190, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Southeastern Mixed Forest Province', 'label': 'Southeastern Mixed Forest Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [168, 0, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Southern Rocky Mountain Steppe-Open Woodland-Coniferous Forest-Alpine Meadow Province', 'label': 'Southern Rocky Mountain Steppe-Open Woodland-Coniferous Forest-Alpine Meadow Province', 'description': ''}, {'symbol': {'type': 'esriSFS', 'style': 'esriSFSSolid', 'color': [189, 127, 0, 255], 'outline': {'type': 'esriSLS', 'style': 'esriSLSSolid', 'color': [0, 0, 0, 0], 'width': 0.4}}, 'value': 'Southwest Plateau and Plains Dry Steppe and Shrub Province', 'label': 'Southwest Plateau and Plains Dry Steppe and Shrub Province', 'description': ''}], 'fieldDelimiter': ','}, 'transparency': 0, 'labelingInfo': None}
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