Geographic Resource Solutions

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Geographic Resource Solutions

Welcome to GRS

  • viewto80822bGRS, located in Arcata CA, was founded in 1989 to provide superior-quality resource information development, technical, and consulting services.
  • GRS is a leader in the implementation of ecologically-based field data collection methodologies designed to provide comprehensive, quantitative, and detailed species-specific cover estimates of the botanical and abiotic features that comprise the ecosystems we must accurately describe.

  • GRS offers "state-of-the-art" natural resource inventory and land cover mapping services based on the application of our unique Discrete Classification Mapping Methodology in combination with traditional vendor provided applications; GRS maps (not models) species-specific cover as a continuous variable, along with other landscape and abiotic characteristics to develop comprehensive resource inventory information.

  • GRS offers complex resource analyses that include natural resource inventory, growth projection, long-term sustained yield projection, long-term harvest scheduling, and change detection.
  • GRS offers total GIS solutions including GIS consulting; data set development, analysis, quality control, and processing; application development; and software sales.

  • GRS has extensive experience designing and developing superior solutions for a wide range of applications, users, and organizations.



New Resource Sampling Study by FAO Recommends Use of Line-point Transect and GRS Densitometer

October 30, 2015 - For Immediate Release

"The line-point transect forest cover assessment method was the most accurate,least expensive, and most easily applied among the four methods tested. This method is scientifically accurate and records forest canopy and floor cover as a set."

This is the major conclusion of a recent study undertaken by the Food and Agriculture Organization of the United Nations (FAO) when they recently presented the results of their study "Testing Field Methods for Assessing the Forest Protective Function for Soil and Water" this past September at the XVI World Forestry Congress held in Durban, South Africa.  In conjunction with this study the FAO has also published a second paper "Field Guide for Rapid Assessment of Forest Protective Function for Soil and Water" that describes their recommended use of the line- point transect and GRS Densitometer to assess forest ecosystems.


Stumpf Line-point Transect Methodology, Results, and Benefits Presentation at ESA, 2014

GRS has posted the Line-point Methodology Presentation made by Ken Stumpf of GRS, Director Of Resource Management Applications on August 13, 2014 at the Ecological Society of America Annual Meeting in Sacramento, CA., under the Densitometer - Canopy Cover Sampling of our Presentations, Publications, and Software subject.  This presentation was titled "A Venerable Range Management Field Data Collection Technique Used to Develop Plant Community Cover and Frequency Characteristics Provides Unexpected New Levels of Detailed Species-specific Information."

A version of the presentation with notes and comments is available at this link "A Venerable Range Management Field Data Collection Technique Used to Develop Plant Community Cover and Frequency Characteristics Provides Unexpected New Levels of Detailed Species-specific Information - with Comments".

For the description of this presentation from the ESA 2014 Annual Meeting website, please use this link.

For further information about these presentations or the materials contained within them, contact Ken at GRS by email at This e-mail address is being protected from spambots. You need JavaScript enabled to view it or phone at (707)-822-8005.



GRS Awarded BLM Alaska Forest Inventory Serivces Contract

November 12, 2015 - For Immediate Release

Geographic Resource Solutions (GRS) was recently awarded a 5-year Blanket Purchase Agreement by the Bureau of Land Management, Alaska (BLM ALaska) to provide forest inventory and mapping services.  In awarding this contract, BLM Alaska recognized that the integrated field inventory and mapping methodologies that GRS has developed can be used in forest inventory applications to estimate and map tree volume and biomass, in addition to the species-specific canopy cover, fire fuel, and plant association/alliance type mapping similar to the results GRS produced during the Galena Forest Biomass Inventory and Planning Project and the Tonsina Valley Forest Inventory and Mapping Projects.


ESA 2014: GRS NVCS Mapping - The Future is Now !!

Recently completed National Vegetation Classification (NVCS) vegetation/land cover map data sets for Lassen Volcanic National Park and Redwood National and State Parks include species-specific cover mapping and NVCS detailed associations and alliances.  These new map data sets represent the future of NVCS vegetation mapping and should be considered "state-of-the-art."

On August 14, 2014, Dr. Janet Franklin of Arizona State University presented a summary of "the state of the art and the likely progress of uses of [National Vegetation Classification System] vegetation mapping."  Her presentation was the final portion of the Mapping with the National Vegetation Classification: Purpose, Value, and Method session at the Ecological Society of America Annual Meeting held in Sacramento, CA that was organized by Todd Keeler-Wolf1 and Julie Evens2.

In her summary slide Dr. Franklin showed a progression through time representing the idea that in the past lower resolution imagery provided more generalized NVCS types and that presently "new technologies and data sources," including higher resolution imagery enabled the development of "categorically fine-scale vegetation  information [NVCS classes].  She predicted that sometime in the future, species-specific cover modeling would become available due to improvements in technology, imagery, and processing.

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GSA# GS-10F-0451NESRI Consultant