{ "culture": "en-US", "name": "Block_Groups_1990_v17a", "guid": "34697E46-D1B0-4916-9FD8-ED624085A41F", "catalogPath": "", "snippet": "1990 Block Groups from the Michigan Geographic Framework (MGF) base map. Block groups (BG\u2019s) are combinations of census blocks within a census tract or BNA that share the same first digit in their identifying numbers. For example, BG 3 within a particular census tract comprises all blocks numbered between 301 and 399. A census tract or BNA contains a maximum of nine BGs. BG90 consists of the 6 digit tract number followed by the 1 digit block group number.", "description": "", "summary": "1990 Block Groups from the Michigan Geographic Framework (MGF) base map. Block groups (BG\u2019s) are combinations of census blocks within a census tract or BNA that share the same first digit in their identifying numbers. For example, BG 3 within a particular census tract comprises all blocks numbered between 301 and 399. A census tract or BNA contains a maximum of nine BGs. BG90 consists of the 6 digit tract number followed by the 1 digit block group number.", "title": "Map", "tags": [ "MGF" ], "type": "Map Service", "typeKeywords": [ "Data", "Service", "Map Service", "ArcGIS Server" ], "thumbnail": "thumbnail/thumbnail.png", "url": "", "extent": [ [ -83.5570851661605, 42.0284115852899 ], [ -82.8700257583349, 42.4579282665715 ] ], "minScale": 0, "maxScale": 1.7976931348623157E308, "spatialReference": "NAD_1983_HARN_StatePlane_Michigan_South_FIPS_2113_Feet_Intl", "accessInformation": "", "licenseInfo": "", "_ssl": true }