The distributed URBAN MUNICIPALITY feature layer, part of the ISC SaskGIS Cadastral dataset, contains a copy of the URBAN MUNICIPALITY feature layer taken from Information Services Corporation (ISC) of Saskatchewans geospatial database. The data is comprised of geospatial locations and attributional information for all Urban Municipalities that reside within the province of Saskatchewan. The feature layer identifies each urban municipality by urban name, PPID (unique ID) and urban type. The urban municipalities have been derived from legal survey data and control survey points. This data is suitable for use in Geographic Information Systems (GIS) and Computer Aided Drawing Systems (CAD). This data is available live and current at www.geosask.ca, and is also available via monthly deliveries for ISCs commercial users. The data that is delivered monthly undergoes rigorous quality control cycles and can be packaged as whole data and/or as change records (which indicate entities that have been added, deleted and modified since the previous months delivery).
The ISC SaskGIS Cadastral dataset is a copy of the cadastral view layers that are continuously maintained within Information Services Corporation (ISC) of Saskatchewans integrated spatial database. All layers are derived from aggregations of common atomic polygons on the master cadastral and right of way layers through the use of relational tables. This ensures the cohesiveness and integrity of the layers. The data is designed to be the representations of the cadastral boundaries that are maintained by Information Services Corporation. All current survey parcels, lots, quarter sections, roadways etc. are shown. The data covers the entire province and is designed to serve as the base for a range of applications including title registry, zoning, land use, assessment, planning, routing and any application which requires a current, accurate description of the survey or ownership parcels in the province.
Questions on product may be directed to Pat Pierce ( (306) 787-0256 or Pat.Pierce@isc.ca) or Perry Frischholz ( (306) 787-0665 or Perry.Frischholz@isc.ca).
This data is available live and current at www.geosask.ca, and is also available via monthly deliveries for ISCs commercial users. The data that is delivered monthly undergoes rigorous quality control cycles and can be packaged as whole data and/or as change records (which indicate entities that have been added, deleted and modified since the previous months delivery).
The data set is licensed for use with no restrictions on who may obtain a license.
The standard license for this data prohibits redistribution of the data in whole or in part. A resale license is available. There are some restrictions (designed to preserve the integrity of the data) on the presentation of the information as maps on a web site and on the distribution of products derived from this data.
* Attributes have been created by two means, depending on the attribute. Some, like the PPID, are generated by the system according to a set of rules. Others, like the legal land descriptors, have been manually entered (transcribed) from the source paper documents. Transcribed values are checked manually on a sampling basis to identify errors. As well external sources of information have been used to validate the values wherever possible. There has been some limited quantification of the accuracy rate for the attribute values, and it appears to be very good.
All line work data is topologically clean with no gaps or overlaps. The polygonal data does have some gaps between polygons (referred to as "slivers") that were created during the data assembly and loading. The vast majority of these have been eliminated but the remaining slivers require manual intervention to clean them up. These are being removed in conjunction with the maintenance of the data. The number of slivers in the data represent less than 0.1% of the total features.
The data is complete with respect to the entry of information from registered plans of survey. All plans that represent currently active land parcel have been entered. New plans are entered daily using a process whereby titling of parcels shown on the new plan and entry of new parcels into the data set are simultaneous. Under the implementation of the automated land titling system (the LAND Project), Information Services Corporation has substantially completed the conversion of the paper based textual descriptions on the actual title document (metes and bounds parcels) to be fully integrated within the SURFACE layer of the Cadastral Product. The completeness of this conversion may be determined by viewing the SURFACE theme in the data set. Any parcel which has a non-null parcel number attribute may be considered as complete while any that has a null parcel number may or may not be subject to further subdivision by a metes and bounds description. (Further details on the LAND project may be found at www.isc.ca)
The absolute positions in this data set relative to datum are correct to within 5-10 metres in the rural portions of the province and to within 1-2 metres in the urban portions. The relative accuracies are better than 5 metres in the rural areas and 1 metre in the urban areas for points that are near each other. The relative accuracies decrease as the distance between points increases.
The accuracy of the coordinate varies with the age of the surveys, the quality of the surveys, the quality of the geodetic control and the quality of the ties to the geodetic control. There has been no attempt to quantify these contributing factors. The coordinates were calculated using ties to geodetic control and information shown on plans of survey and then fit together. Where the fit between the various plans was within acceptable limits rubber sheeted (adjusted) to fit. Where plans did not fit together properly other sources of information were used for rubber sheeting, including, but not only, historical survey plans, field measurements, and aerial photographs.
This product does not have a vertical component.
The data is licensed on an "as is" basis, and the distributor makes no guarantees, representations or warranties with respect to the data, either express or implied, arising by law or otherwise, including but not limited to, effectiveness, completeness, accuracy, or fitness for purpose.
Please use the above contact for any question on the Metadata content or product content.