contours
vector digital data
Howard County, MD 2' contours extracted from a combination of LiDAR and hydro breaklines for approximately 256 Square Miles. LiDAR inputs have been provided by Surdex. Hydro breakline and approximate area delineation inputs have been provided by Axis Geospatial.
To acquire detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments, and hydrologic modeling
-77.187603
-76.695221
39.369748
39.102483
ISO 19115 Topic Categories
elevation
None
unknown
Contours generated by The Sanborn Map Company, Inc. (from 3rd party data) through contract with KCI Technologies.
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.4.4000
Vector
String
267889
Lambert Conformal Conic
38.3
39.45
-77.0
37.66666666666666
1312333.333333333
0.0
coordinate pair
0.0003280833333333334
0.0003280833333333334
D North American 1983
GRS 1980
6378137.0
298.257222101
North American Vertical Datum of 1988
0.000000
feet
Explicit elevation coordinate included with horizontal coordinates
contours
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
ContourType
Elevation
Shape_Length
Length of feature in internal units.
ESRI
Positive real numbers that are automatically generated.
20120712
The Sanborn Map Company, Inc.
Luiz Cortes
Project Manager
mailing and physical
6701 Carmel Road
Suite 301
Charlotte
NC
28226
UNITED STATES
704.347.4552
704.347.4515
lcortes@sanborn.com
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time