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Acquiring GIS Data: Utah |
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Finding Data with the SGID:
To find the county boundaries file, open the AGRC SGID Users’ Guide. ( http://agrc.utah.gov/agrc_sgid/sgiddata/sgid_user_guide.pdf )
You will notice the guide is hyperlinked so you can jump from one location to another. Choose ‘Data layers by Category’. The categories are alphabetical and on the first page notice there are three different listings for county boundaries available from three different directories and at three different scales.
The directory is the location in the SGID to find the appropriate file. The remaining three characters on the file name can be deciphered from the SGID user guide from the left most column. The following image shows a snapshot of the SGID user guide by category.
Results: ( agrc_users_guide_catagories )
By using the above screen capture of the SGID guide you can decipher the meaning behind the file name AOLSA. The first part, AO, stands for administrative; Ownership and political boundaries, the LSA portion, as taken form the list above and stands for Land Status Administration (Ownership). This file is available at 100k and 500k scales and can be found in the SGID either in the ST500 or QU100 directories.
You should be able to follow this pattern for further deciphering of the cryptic naming convention. After a while using the AGRC web site the file names start to make sense. Remember in acrobat reader you also have the option to search for a word, this will help shorten the time for getting to the right location or category.
Questions: Use the SGID user guide and the above information to find the file names and appropriate directory to start your search for the following scenarios:
Roads and trails at a scale of 1:24,000 Railroads at a scale of 1:100,000 Statewide coverage of vegetation Water bodies at a scale of 1:24,000 Water course at a scale of 1:100,000 Use the find tool in the SGID adobe file and find the Pony express routes. |
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