20230501
15534300
1.0
FGDC CSDGM Metadata
FALSE
Area23_1ft_Contours
002
Projected
GCS_NAD_1983_2011
Linear Unit: Foot_US (0.304801)
NAD_1983_2011_StatePlane_Illinois_East_FIPS_1201_Ft_US
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20230601
14581800
20230616
10105300
150000000
5000
ItemDescription
Esri ArcGIS 13.0.0.36056
Contours 2022 1ft Area 23
Cook County 1 ft. elevation contours for area 23. Data is derived from 2022 lidar.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>2022 Cook County 1 ft. elevation contours for PLSS Township Area 23. Data is derived from 2022 lidar. If you plan on downloading this dataset it is recommended to use the File Geodatabase option. The shapefile format may not work for larger datasets.</SPAN></P><P><SPAN> Abstract: One-foot interval contours are generated from a two-foot two-pass gridded surface created from the ground (class = 2) and road surface (class = 11) classified lidar points and the hydro breaklines.</SPAN></P><P><SPAN> Purpose: This task is for providing a spring 2022 leaf-off and snow-free high-density lidar survey over an Area of Interest (AOI) of approximately 1,199 square miles covering Cook County, Illinois (and its surrounds).</SPAN></P></DIV></DIV></DIV>
Cook County GIS Department
contour
elevation
terrain
open data
LiDAR
physical geography
3D
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>While efforts have been made to be as accurate as possible, Cook County provides the data for personal use “as is”. The data is not guaranteed to be accurate, correct, or complete. Information provided should not be used as a substitute for legal, business, tax, or other professional advice. The recipient/viewer should contact appropriate regulating agencies to determine accuracy or suitability of the data for a particular use. Cook County or its staff assume no liability whatsoever for any losses that might occur from the use, misuse, or inability to use its geospatial data, maps or websites. All materials appearing on a map, geospatial data or County GIS web site are transmitted without warranty of any kind and are subject to the terms on this disclaimer.</SPAN></P></DIV></DIV>
File Geodatabase Feature Class
dataset
EPSG
8.2.10(10.3.1)
0
Simple
FALSE
0
TRUE
FALSE
Area23_1ft_Contours
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
Ftype
Ftype
String
50
0
0
Elev
Elev
Integer
4
0
0
SHAPE_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
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