PROBLEM

The Extract Values to Points tool returns -9999 in the output attribute table

Last Published: February 3, 2022

Description

The Extract Values to Points tool in ArcGIS Pro extracts and records the cell values of a raster in the attribute table of an output point feature class. In some cases, running the tool returns the value '-9999' instead of the correct raster cell values.

Cause

This issue occurs due to a mismatch between the spatial reference of the raster and the point feature class.

Solution or Workaround

To solve the issue, match the spatial reference of the raster and the point feature class using the Project tool.

  1. Determine the current spatial reference of the raster and the feature class.
    1. In the Contents pane, right-click the raster layer and click Properties > Source. Expand Spatial Reference to display the spatial reference of the raster.
The raster layer's spatial reference.
  1. Repeat Step 1(a) to determine the spatial reference of the point feature class.
  1. Project the point feature class to match the raster's spatial reference using the Project tool.
    1. For Input Dataset or Feature Class, select the point feature class.
    2. Specify a name and location for Output Dataset or Feature Class.
    3. For Output Coordinate System, select the raster layer from the drop-down list, or click Select coordinate system The Select coordinate system icon. to select the coordinate system of the raster layer.
    4. Optionally, select a geographic transformation, if required.
  2. Run the Extract Values to Points tool. The output attribute table displays the correct raster cell values.
The extracted raster cell values.

Article ID: 000024403

Software:
  • ArcGIS Pro 2 8 x
  • ArcGIS Pro 2 7 x
  • ArcGIS Pro 2 x

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