PRIMARY CONTROL POINTS FOR BOULDER COUNTY

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Frequently anticipated questions:


What does this data set describe?

Title: PRIMARY CONTROL POINTS FOR BOULDER COUNTY
Abstract:
NOTE FROM THE COUNTY SURVEYOR: The survey for these Control Points was performed in 1998-2000. Some of these Control Points have been destroyed. Horizontal Data Information may not be current, due to subsequent revisions in federal Geoid models. Because of budgetary limitations, this network is not regularly maintained by Boulder County.
  1. How should this data set be cited?

    , 20130308, PRIMARY CONTROL POINTS FOR BOULDER COUNTY.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -105.901505
    East_Bounding_Coordinate: -104.977924
    North_Bounding_Coordinate: 40.275037
    South_Bounding_Coordinate: 39.817713

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: map

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (51)

    2. What coordinate system is used to represent geographic features?

      The map projection used is NAD 1983 HARN StatePlane Colorado North FIPS 0501 Feet.

      Projection parameters:
      Standard_Parallel: 39.71666666666667
      Standard_Parallel: 40.78333333333333
      Longitude_of_Central_Meridian: -105.5
      Latitude_of_Projection_Origin: 39.33333333333334
      False_Easting: 3000000.000316083
      False_Northing: 999999.999996

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.00000000003004137721056803
      Ordinates (y-coordinates) are specified to the nearest 0.00000000003004137721056803
      Planar coordinates are specified in foot_us

      The horizontal datum used is D North American 1983 HARN.
      The ellipsoid used is GRS 1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.

  7. How does the data set describe geographic features?

    lu.LU.CONTROL_PRIMARY_CONTROL_POINTS

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    ID

    LAT_D
    Latitude

    LAT_M

    LAT_S

    LONG_D

    LONG_M

    LONG_S

    VISIT_DATE
    Date of Visit by Surveyor (Source: Surveyor)

    GPS_OBSTRU

    CONTROL

    PANEL_STAT

    CREW
    Surveyor

    NAME
    Monument name

    TYPE_PT
    Type of control point

    LOCATION
    Monument location

    LOCATION2
    Location of control point

    HOR_ACC
    Horizontal Accuracy

    VER_ACC
    Vertical Accuracy

    SKETCH
    Sketch available

    LOCA

    LOCB

    LOCC

    LOCD

    LOCE

    LOCF

    LOCG

    LOCH

    OLD_N

    OCCUPIABLE

    NORTHING

    EASTING

    NORTHING2

    EASTING2

    ELIPSHGT2
    Ellipsoidal Height

    ORTHOELEV1
    Orthometric Elevation

    PID

    MID

    OLD_NM_LC


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Boulder County Surveyor

  3. To whom should users address questions about the data?


Why was the data set created?

Primary Control Points for Boulder County


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
This data is for illustrative purposes only. Boulder County makes no warranties regarding the accuracy, completeness, reliability, or suitability of these data. Boulder County Land Use Department disclaims any liability associated with the use or misuse of these data. In accessing and/or relying on these data, the user fully assumes any and all risk associated with this information.


Who wrote the metadata?

Dates:
Last modified: 15-Mar-2013
Metadata author:
Boulder County Surveyor
PO Box 471
Boulder, CO 80306
US

303-443-3616 (voice)
jemery@bouldercounty.org

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.9.12 on Fri Mar 15 08:59:29 2013