• Does not mention “resources” but it speaks 

about “natural, cultural, and visitor use” values

• These are not market-based commodities - but 

they are valuable 

• GCPA speaks to preserving and “improving” 

values; how do we measure improvement? 
• Market resources 

– Traded in established markets, e.g. fuel, food, housing, “goods” 

- Represented by common economic indicators ($) 

- Gross Domestic Product measures their contribution to economy 

• Non Market resources 

– Not traded in established markets, e.g., clean air, wildlife, 

scenery, archaeological sites 

– Collectively produced and consumed 

– Not represented by common economic indicators; no direct 

pricing to guide valuation 

– Non market resources have economic value but GDP does not 

measure their contribution to the economy 
• All previous independent review panels 

perceived need for up-to-date robust economic 

data to inform monitoring and decision-making 

• Panels unanimous about need for broad-based 

economic assessments (market/non-market, 

use/non-use) 

• Almost all GCDAMP economic assessments 

focus on impacts to hydropower from proposed 

experimental / management actions 

• The only recreation economic assessment 

conducted for GCDAMP was about LSSF 

impacts on local recreation (completed in 2003) 
• Conducted in advance of holding a 

socioeconomic PEP review 

• TWG participants chose not to rank 

socioeconomic INS from different goals 

• (Goals 9, 10, 12) 

• TWG participants reviewed and revised 

CMIN for Goal 10 (hydropower) 
• MO Objective 9.1 Maintain or improve the quality 

and range of recreational opportunities in Glen and 

Grand Canyons within the capacity of the Colorado 

River ecosystem to absorb visitor impacts 

consistent with the NPS and tribal river corridor 

Management Plans. 

• CMINI 9.1.4 Determine and track the economic 

benefits of river related recreational opportunities. 
• Objective 10.1 Maintain or increase power with 

respect to marketable capacity and energy at 

Glen Canyon Dam. 

• CMIN 10.1.1 Determine and track the 

marketable capacity and energy produced 

through dam operations in relation to the various 

release scenarios (daily fluctuation limit, up ramp 

and down ramp limits, maximum flow limit of 

25,000 cfs, minimum flow limit of 5,000 cfs.) 
 MO 12.1 Maintain or attain socio-economic data for 

adequate decision-making. 

 12.1.1 What is the economic value of the recreation use of the 

Colorado River ecosystem downstream from Glen Canyon 

Dam? 

 12.1.2 What are the use (e.g., hydropower, trout fishing, rafting) 

and non-use (e.g., option, vicarious, quasi-option, bequest, and 

existence) values of the Colorado River ecosystem? 

 12.1.3 How do use (e.g., hydropower, trout fishing, rafting) and 

non-use (e.g., option, vicarious, quasi-option, bequest, and 

existence) values change in response to an experiment 

performed under the Record of Decision, unanticipated event, 

or other management action? 
• To discuss and clarify needs for socioeconomic 

information and potential approaches for obtaining it in 

the foreseeable future 

• To learn what has been done and what could be done to 

help inform future AMP decision making, e.g., what 

information has been or could be developed to properly 

assess impacts or evaluate trade-off options? 

• To learn from each other and decide: 

– What can we agree to accomplish over the next 3-5 years 

(Phase I work)? 

– What is needed over the longer term and how do we get there? 
• Part 1: Presentations by subject experts 

 Discuss past project results and relevant recent 

work 

• Part 2: Facilitated discussion with TWG 

Clarify AMP socioeconomic information needs 

• Part 3: Independent panel summary 

 Panelists review what was heard, clarify 

stakeholder info needs, recommend next steps 

and approaches 
Questions?