CorridorDesigner includes an ArcToolbox toolbox for creating habitat and corridor models with ArcGIS and an ArcMap extension for evaluating corridors. All tools and supplentary materials are works in progress, and undoubtedly contain bugs, typos, and other occasional screw-ups. If you experience a problem with the tools, please send us an email so we can help you figure out how to fix it. Also, a lot of great tools have been created since we started this website in 2007. Don't forget to check out our resources page to find tools that might better meet your needs.

Conceptual steps for designing corridors

Name Last Modified
Beier et al. 2008. Forks in the road: choices in procedures for designing wildland linkages. Conservation Biology. (1 MB) August 2008
Conceptual steps for designing corridors (1 MB) 17 December 2007
Best management practices for corridors (1 MB) February 2008
2007 workshop presentations (17 MB) December 2007
CorridorDesigner poster July 2008

ArcGIS toolbox for designing corridors

General-use corridor design toolbox

The CorridorDesigner toolbox aids the user in 1) creating habitat suitability models & identifying potential habitat patches, 2) creating corridor models, and 3) transforming a DEM into a topographic slope position raster. The CorridorDesigner toolbox currently only works within ArcCatalog, not ArcMap, and requires all data to be in the same meters (UTM) projection.

Name Last Modified
CorridorDesigner toolbox (1 MB) 18 October 2007
CorridorDesigner toolbox tutorial (1 MB) 17 December 2007
CorridorDesigner toolbox tutorial dataset (9 MB) 16 December 2007

Important! If you're having problems with the toolbox, here are some common errors and solutions.

Arizona corridor design toolbox

The Arizona CorridorDesigner toolbox provides an easy entry point to the corridor design process for those performing corridor analyses within the state of Arizona, USA. It provides parameterized models for 25 species modeled in the Arizona Missing Linkages project, including bighorn, pronghorn, mountain lion, desert tortoise, black bear, black-tailed jackrabbit, elk, mule deer, javelina, coati, and others.

The Arizona CorridorDesigner toolbox includes the general CorridorDesigner toolbox available separately above. In order to use the Arizona toolbox, you must also download the GIS dataset which works in conjunction with the tools. If you already have a 30m DEM, a roads shapefile, and an ownership/stewardship file for Arizona in NAD UTM z12 projection, you can just download the customized land cover layer. Otherwise, you should download the full GIS dataset.

Name Last Modified
Arizona CorridorDesigner toolbox (2 MB) 18 October 2007
Arizona toolbox documentation & species accounts (1 MB) 23 January 2008
Arizona toolbox GIS dataset (409 MB) 17 December 2007
Arizona toolbox landcover raster (54 MB) 16 December 2007

ArcMap extension for evaluating corridors

The ArcMap extension allows the user to evaluate and compare alternative corridor designs by calculating metrics such as: 1) Width and bottlenecks throughout a corridor, 2) Distances between habitat patches within a corridor, and 3) General statistics such as histograms of habitat suitability within a corridor. The CorridorDesigner evaluation extension is designed to work with the output from the ArcGIS extension to evaluate potential wildlife corridors.

ArcMap 9.x extension for evaluating corridors (16 MB)
ArcMap 10 extension for evaluating corridors (16 MB)
Documentation for ArcMap extension (6 MB)
Revisions to ArcMap extension (1 MB)
ArcMap extension raw code (22 MB)

Land facet corridor tools

ArcGIS 9.3 tools for designing corridors based on topographic-soil land facets. These tools provide a method to complement traditional corridor design techniques in order to better plan for impending climate change.

Name Last Modified
Brian Brost's MS thesis on designing corridors for land facets (7 MB) 1 July 2010
2010 Conservation Biology Beier & Brost paper on land facets (1 MB) 1 July 2010
Documentation for land facet ArcMap extension (5 MB)
Land facet ArcMap 9.x extension (16 MB)
Land facet ArcMap 10 extension (16 MB)
Land facet R functions (1 MB)
Land facet Updates (1 MB)
Land facet ArcMap extension source code (29 MB)

Preferred Citation

Majka, D., J. Jenness, and P. Beier. 2007. CorridorDesigner: ArcGIS tools for designing and evaluating corridors. Available at


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Software Requirements

CorridorDesigner requires:

  • ArcGIS 9.1-10.1
  • Spatial Analyst extension
  • Python 2.1 or newer.

We recommend installing the latest service pack for ArcGIS.

Software License

These tools are distributed under a Creative Commons Attribution-ShareAlike 3.0 Unported license. According to the terms of this license, you are free to copy, change and redistribute the tools. If you alter, transform, or build upon this work, you may distribute the resulting work only under the same, similar or a compatible license.

You are free to use and adapt these tools for commercial work; however, you may not repackage any part of these tools or data as part of a commercial software package. If you have any questions about how can use anything on the site, please contact Dan.

Legal Stuff

By downloading any of the CorridorDesigner GIS tools, you agree to the following terms and conditions:

These tools are available to assist in identifying general areas of concern only. Results obtained by the tools provided should only be relied upon with corroboration of the methods, assumptions, and results by a qualified independent source.

The user assumes full responsibility for the interpretation or manipulation of the data. The user of this information shall indemnify and hold free the Northern Arizona University, the State of Arizona, and the creators of the CorridorDesigner GIS tools from any and all liabilities, damages, lawsuits, and causes of action that result as a consequence of his/her reliance on information provided herein or from any misinterpretation or manipulation of the data.

In other words: 1) please don't sue us, because we don't have any money anyway, and 2) please don't just rely on GIS models for designing corridors. GIS models are neat and useful, but don't let them replace your brain.