The following executable programs are available for download from this site. All programs have been developed by the USDA Forest Service, and are public domain software.  Programs were created by Steve Rheinberger and Rick Toupin (both are currently retired).


Logging Systems Programs

Contact person:

Mike Barger
Inter-Regional Logging Engineer, Oregon, Washington and California 



  • SkylineXL:  (Version 15.1)  SkylineXL is a Microsoft Excel Workbook used to analyze terrain profiles for skyline payload analysis, line tensions, rigging lengths and skyline feasibility.  SkylineXL is able to analyze four different skyline configurations; Standing Skyline, Multispan Skyline, Running Skyline and Live Skyline in English or Metric measurement units.  SkylineXL includes a database consisting of widely used yarder/tower combinations and carriages along with their respective line lengths, line sizes and other important data.  The user has the option within SkylineXL to add custom designed yarders and/or carriages to the database for skyline analysis.


  • SkylineXL GIS Profile Tool:  This is an ESRI Add-In utility which uses an Arc/Map version 10.1 or 10.2 line layer representing skyline terrain profiles and a GIS raster layer representing elevations on the ground to input profiles into the SkylineXL application for analysis.  This file is compressed using WinZip.  After downloading the SkylineXL GIS Profile Tool zip file, uncompress the file using WinZip and save the un-zipped files to your computer.  Installation instructions are contained in the un-zipped Microsoft Word Document which will guide you to add the SkylineXL GIS Profile Tool to your GIS user interface.


  • Enable Excel Macros:  Contains the instructions to modify Microsoft Excel Options to enable the SkylineXL code to run when the user clicks on program buttons.  SkylineXL must have macros enabled to operate properly.  Only enable Excel macros from trusted sources.


  • Skyline Tatum Aids:  Skyline Tatum Aids are a set of tables and charts taken from Oregon State University and Oregon OSHA to assist in the field preparation of feasible skyline settings.  These tatum aids may be printed and laminated to use in the woods during skyline timber sale planning and layout. 



  • LogCost:  (Version 15.0)  LogCost is a Microsoft Excel Workbook used to estimate stump-to-truck costs and production for a variety of logging systems and equipment configurations simultaneously:  Skyline, Mechanized, Tractor, Shovel and Helicopter logging systems.  Variations within logging systems are also possible.  Biomass harvest costs can be estimated within the Mechanized and/or Skyline logging system worksheet (including biomass haul cost).


  • HaulCost:  (Version 15.0)  HaulCost is a Microsoft Excel Workbook used to estimate log truck transportation costs from the loading point to the mill or appraisal point.


  • Enable Excel Macros:  Contains the instructions to modify Microsoft Excel Options to enable the LogCost and HaulCost code to run when the user clicks on program buttons.  LogCost and HaulCost must have macros enabled to operate properly.  Only enable Excel macros from trusted sources.


  • Volume Summary Form:  CCF, MBF, Cords. The spreadsheet is an automated volume summary form, room for 100 units and 10 species or species groups. Creates a volume summary form, uses NATCRS data. The spreadsheet includes hidden defect & breakage utility, down woody debris option, and report options. Last update 12/9/2009.



  • Residual Value Economic Evaluation:  (Version 3.0)  The intended use of this spreadsheet is to estimate the economic viability of planned Federal timber sales (residual value method). The user inputs the data necessary to make the determination in various tables. The summary table displays items such as the advertised rate, base rate, timber value, whether or not the unit and/or sale is estimated to be deficit or not, and the estimated value the sale is above (or below) base rates. The evaluation is based on the residual value appraisal methodology. Additional information is displayed in the Cost Centers Evaluation & Summary screen. Last update 1/12/2012. Excel 2007 and 2010, macro-enabled spreadsheet.


  • Sale/Project Economic Evaluation (R6-TEA-Econ):  (Version 6.1)  An economic analysis tool that allows the user to evaluate timber sale economics at the planning or sale layout level. The spreadsheet includes "cash flow" and "non-timber value" screens as well as screens which summarize net present value and benefit-cost ratios. Timber sale projects can be evaluated by individual units or by the sale-as-a-whole. The spreadsheet uses the Transaction Evidence Appraisal (TEA) system to generate basic gross timber values and estimated advertised rates. This spreadsheet is applicable to Region 6 projects - tied to the TEA process and uses the R6 TEA.COST file. This sheet is best used for EA & EIS projects where economic factors are estimated such as PV costs, PV benefits, NPV, B/C ratio, cash flows (KV, salvage sale fund, payments to counties), non-timber values, and sale advertised rates. Sale data for both current and future entries can be input. Last update 5/30/2013. Excel 2007 and 2010, macro-enabled spreadsheet.


Updated:  27 February 2015