20260504
08245600
1.0
FGDC CSDGM Metadata
FALSE
CountyBoundary_poly
987066.743767
1533434.993876
497455.482623
799211.045778
1
002
Projected
GCS_NAD_1983_2011
Linear Unit: Foot_US (0.304801)
NAD_1983_2011_StatePlane_South_Dakota_South_FIPS_4002_Ft_US
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20240614
11010900
20240614
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FGDC
ArcGIS Metadata
1.0
Pennington County - Rapid City GIS
605-716-3672
300 6th Street
GIS Division
Rapid City
SD
57701
US
gis2@rcgov.org
M - F; 7:30am - 4:00pm
see https://www.rcgov.org/departments/public-works/geographic-information-system/gis-data-216.html for a price list
Contact GIS Division
Normally 2-3 business days
Pennington County Limits
Feature Class
2004-07-26
Pennington County - Rapid City GIS
Rapid City, South Dakota
Pennington County - Rapid City GIS
CountyBoundary_poly
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data set contains the latest available version of the area within the county boundary for Pennington County, South Dakota, based on legal property descriptions. The areas and boundaries depicted were created primarily from aerial mapping methods and do not represent a legal survey of the land.</SPAN></P></DIV></DIV></DIV>
This data set was developed to provide a current map of the Pennington County boundary for general use within the Pennington County - Rapid City GIS.
Original digital maps were maintained by the Pennington County Director of Equalization mapping specialist.
Pennington County - Rapid City GIS
605-716-3672
GIS Division
300 6th Street
Rapid City
SD
57701
US
gis2@rcgov.org
M - F; 7:30am - 4:00pm
South Dakota
Pennington County
ISO 19115 Topic Category
boundaries
county boundary
South Dakota
boundaries
county boundary
Pennington County
see Use Constraints
Use of this data requires acceptance of the applicable Pennington County - Rapid City GIS data agreement included in the Use Constraints section.
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 7 0;"><SPAN>The data user (hereafter "The User") understands and acknowledges that the GIS Product File(s) listed above were created from GIS data files and developed for internal use only. The GIS data is subject to constant change and the accuracy and completeness cannot be guaranteed. The GIS data is provided "as is" without warranties or guarantees, either expressed or implied, as to the completeness, accuracy, or correctness of such GIS data, fitness for a particular purpose, or warranty that the information does not infringe the rights of others, nor accepts any liability arising from any incorrect, incomplete or misleading information contained therein. The City of Rapid City is not responsible for incidental, consequential, or special damages arising out of the use of the GIS data provided the User. The User agrees that the GIS Product File(s) shall be used and relied upon only at the risk of the User. The User agrees to indemnify and hold harmless the City of Rapid City, its officials, officers, employees and servants from any liability, claims, loss, damages, injury, costs and attorney fees arising out of procuring, compiling, collecting, interpreting, production, using or communicating the GIS Product File(s) or information contained therein. These data do not represent a legal survey of the land. Data were created from aerial mapping methods.</SPAN></P></DIV></DIV></DIV>
Pennington County, South Dakota Tax Parcels
2006-06-26
Pennington County - Rapid City GIS
Rapid City, South Dakota
Pennington County - Rapid City GIS
vector digital data
ground condition
2007-06-07
The county boundary does not coincide with the USGS boundary in the area of the Cheyenne River.
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595
1
-104.093698
-101.978294
44.514008
43.638069
No topological errors are known to exist.
No topological errors are known to exist.
The data set contains all the area within Pennington County.
The COUNTYNAME attribute identifies areas within the county bourndary.
The county boundary is dependent upon two data sources: the USGS DOQQs and the Pennington County tax parcel feature class. Random tests of the DOQQs that cover the same area as the Rapid City orthophotos indicate a difference of 15 - 20 feet. (Tests of the Rapid City orthos indicate most positions are within 1 foot of first order or better survey monuments.) Random visual inspections of parcel line locations show that most of them are within 5 feet of the apparent ground position. Some areas where the conversion vendor used the wrong procedure are off by 20 - 30 feet. The net error estimate for the county boundary is about 20 feet from a true position for the DOQQ base, and an additional 5 feet for the parcel base. Relative accuracy of the boundary line with respect to the parcels is excellent. No known discrepancies exist between these two data sets. The boundary delineated by the Cheyenne River in the tax parcels does not correspond to the USGS boundary line. The boundary in this data set is based on the tax parcels.
Estimate of accuracy based on the data used to create the county boundary.
25 feet
The county area was created by merging the all the tax parcels within the county.
From 1989 through 2000, new parcels were created by digitizing or COGOing property plats into the existing Microstation .dgn files. Rectified (not ortho corrected) digital photos were used to help align property lines. As new photos were obtained, about every three years, a number of lines had to be moved, especially in areas of high relief.
The tax parcel feature class, upon which the county boundary is based, was originally created in 1989. Lines were digitized and COGOd from property plats into files at three different scales: 1:7200, 1:2400, and 1:1200. The USGS quadrangle section corners were used as control.
The original digital parcel maps were controlled by section corners digitized from the USGS quadrangles.
24000
USGS 1:24,000 Quadrangles
Quadrangles
USGS
publication date
Section corners from the quadrangles were used as control for the digital parcel maps. DLGs were used for the western half of Pennington County. Section corners were digitized from DRGs for the eastern half of the county, where DLGs have not yet been created.
24000
1:24,000 USGS DLGs and DRGs
DLGs and DRGs
USGS
publication date
Digital tax parcel maps were visually matched to 1:12,000 USGS DOQQs when converted to Arc/INFO coverages. Road centerlines (which are used for some city limit lines) were digitized on top of the DOQQs.
12000
USGS 1:12,000 DOQQs
DOQQs
1997-01-01
USGS
publication date
Rectified aerial photos (not ortho corrected) were used to help place property lines in the original digital files, and for maintenance in the Microstation environment.
Rectified aerial photos
Rectified aerial photos
Various aerial photo firms
ground condition
In 2000, the City of Rapid City and Pennington County undertook a project to convert the parcel lines to Arc/Info coverage format and to adjust them visually to the USGS DOQQs and the Rapid City area orthophotography. The 1:24,000 DLG section lines and locally created 1:24,000 DRG-based section lines (for the eastern half of the county) served as control for the project. The three different scales of data were merged into township sized coverages. This conversion yielded reasonably good data in the eastern half of the county, but problems were noted in the western half. The conversion vendor incorrectly moved section lines in some tax parcels to match the DLG section lines, rather than moving the parcels to the correct section. To date, the displacements caused by these problems have not been corrected. These particular problems do not affect the county boundary.
2000-08-01
In 2003, the Arc/INFO township coverages were merged into one county parcel SDE feature class. Maintenance has continued using ArcMap software.
2003-01-01
CountyBoundary_poly
Areas within the boundary of the county
tax parcels
Feature Class
1
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
OBJECTID
OID
4
10
0
Shape
Feature geometry.
ESRI
Coordinates defining the features.
SHAPE
Geometry
4
0
0
CountyName
County name
String
25
0
0
Name of county for area within county
tax parcels
PENNINGTON COUNTY
GlobalID
GlobalID
GlobalID
38
0
0
created_user
created_user
String
255
0
0
created_date
created_date
Date
8
0
0
last_edited_user
last_edited_user
String
255
0
0
last_edited_date
last_edited_date
Date
8
0
0
Shape.STArea()
SHAPE.STArea()
Double
0
0
0
Shape.STLength()
SHAPE.STLength()
Double
0
0
0
dataset
EPSG
8.9.3(10.3.1)
1
Simple
FALSE
1
TRUE
FALSE
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Pennington County - Rapid City GIS
605-716-3672
GIS Division
300 6th Street
Rapid City
SD
57701
US
gis2@rcgov.org
M - F; 7:30am - 4:00pm
Pennington County - Rapid City GIS