Map Values - Reference Data

Important! IFTDSS Reference Data are dynamic and are updated over time. HVRA National Datasets remain static, circa 2020, but these may be discontinued in the future due to age.

The Reference Data in Map Values is a combination of standard IFTDSS reference layers and National HVRA Data layers which represent those HVRAs layers used by Dillon (2020) during the National Wildfire Risk Assessment for Forest Service Lands. The Reference Data are assigned to Primary HVRA Category(s) based on what the layer represents. When a Primary HVRA Category is selected, IFTDSS determines available Sub-HVRAs within the specified geographic extent, including your shapes and shapefiles.

Tip: Your geographic extent may not always include every Sub-HVRA in the Primary HVRA Category.

Available reference layers in Map Values include:

  • IFTDSS Reference Data includes those reference layers that are national in scope and represent features that are considered values, thus not every IFTDSS reference layer is available. This data is indicated by the IFTDSS IFTDSS icon.
  • Highly Valued Resource or Asset (HVRA) National Data is part of the of the HVRA dataset used in the National Wildfire Risk Assessment for Forest Service Lands (NaWRA, Dillon 2020) and are national in scope including non-Forest Service lands. This data is indicated by the US map US Mapicon.

The Reference Data are listed below for Sub-HVRAs, grouped by Primary HVRA Category. Each is linked to a metadata page with more detail. We've also included Response Functions used for Quantitative Wildfire Risk Assessment.

Primary HVRA Category: Air Quality

Sub-HVRAs and their QWRA response functions for each flame length class.
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

US MapLow PM2.5 Emission Potential

0 0 -10 -10 -10 -10

US MapModerate PM2.5 Emission Potential

-10 -10 -20 -20 -40 -40

US MapHigh PM2.5 Emission Potential

-30 -40 -50 -60 -80 -100

Primary HVRA Category: Communities

Sub-HVRAs and their QWRA response functions for each flame length class.
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

US MapLow density (>0-28 people per square mile)

-10 -20 -40 -60 -80 -90

US MapModerate density (>28-250 people per square mile)

-10 -20 -40 -60 -80 -90

US MapHigh density (>250 people per square mile)

-10 -20 -40 -60 -80 -90

Primary HVRA Category: Ecosystem Function

Sub-HVRAs and their QWRA response functions for each flame length class. IFTDSS Reference Data does not have a pre-populated Response Function, and is indicated below by "NA."
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

IFTDSSInventoried Roadless Area

NA NA NA NA NA NA

IFTDSSWilderness Study Area

NA NA NA NA NA NA

IFTDSSWilderness

NA NA NA NA NA NA

US Map Fully positive

100 100 100 100 100 100

US Map All positive, undulating

100 80 80 50 60 70

US Map All positive, decreasing slightly

100 100 100 90 80 70

US Map Fully positive to neutral

100 100 80 50 20 0

US Map Moderately positive to fully positive

50 80 100 100 100 100

US Map Fully positive to moderately negative

100 100 50 10 -20 -50

US Map Fully positive to strongly negative

100 100 50 -10 -50 -70

US Map Neutral to slightly negative

0 0 0 0 -20 -50

US Map Neutral to moderately negative (slow)

0 0 -10 -30 -40 -50

US Map Neutral to moderately negative (steady)

0 -10 -10 -30 -40 -50

US Map All negative, decreasing

-50 -60 -70 -80 -90 -100

US Map Fully negative

-100 -100 -100 -100 -100 -100

Primary HVRA Category: Infrastructure

Sub-HVRAs and their QWRA response functions for each flame length class. IFTDSS Reference Data does not have a pre-populated Response Function, and is indicated below by "NA."
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

IFTDSSBLM Buildings

NA NA NA NA NA NA

IFTDSSNPS Buildings

NA NA NA NA NA NA

IFTDSSUSFS Buildings

NA NA NA NA NA NA

IFTDSSMines

NA NA NA NA NA NA

IFTDSSCommunication Towers

NA NA NA NA NA NA

IFTDSSElectric Sub Stations (Removed)

NA NA NA NA NA NA

IFTDSSPower Plants

NA NA NA NA NA NA

IFTDSSTransmission Lines

NA NA NA NA NA NA

IFTDSSOil/Gas Pipelines

NA NA NA NA NA NA

IFTDSSCampgrounds (BLM and USFS)

NA NA NA NA NA NA

IFTDSSNational Recreation Areas

NA NA NA NA NA NA

IFTDSSNational Historic Trails

NA NA NA NA NA NA

IFTDSSNational Recreation Trails

NA NA NA NA NA NA

IFTDSSNational Scenic Trails

NA NA NA NA NA NA

IFTDSSNational Scenic Byways

NA NA NA NA NA NA

IFTDSSUSFWS Trails

NA NA NA NA NA NA

US Map Powerlines

0 0 0 -30 -40 -50

US Map Communication Sites

0 0 -10 -30 -40 -50

US Map Low/Moderate Investment Buildings and Developed Recreation Sites

-10 -20 -40 -60 -80 -90

US Map High Investment Buildings and Developed Recreation Sites

-10 -20 -40 -60 -80 -90

Primary HVRA Category: Surface Drinking Water

Sub-HVRAs and their QWRA response functions for each flame length class.
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

US Map Lowest importance (IMP 1-10)

0 0 -20 -35 -50 -65

US Map Extremely low importance (IMP 11-20)

0 0 -20 -35 -50 -65

US Map Very low importance (IMP 21-30)

0 0 -20 -35 -50 -65

US Map Low importance (IMP 31-40)

0 0 -20 -35 -50 -65

US Map Moderately low importance (IMP 41-50)

0 0 -20 -35 -50 -65

US Map Moderately high importance (IMP 51-60)

0 0 -20 -35 -50 -65

US Map High importance (IMP 61-70)

0 0 -20 -35 -50 -65

US Map Very high importance (IMP 71-80)

0 0 -20 -35 -50 -65

US Map Extremely high importance (IMP 81-90)

0 0 -20 -35 -50 -65

US Map Highest importance (IMP 91-100)

0 0 -20 -35 -50 -65

Primary HVRA Category: Priority Vegetation

Sub-HVRAs and their QWRA response functions for each flame length class. IFTDSS Reference Data does not have a pre-populated Response Function, and is indicated below by "NA."
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - Priority Habitat Management Area (SFA-PHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - Other Habitat Management Area (SFA-OHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - General Habitat Management Area (SFA-GHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-grouse Priority Habitat Management Area (PHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-grouse Important Habitat Management Area (IMHA)

NA NA NA NA NA NA

IFTDSSGreater Sage-grouse General Habitat Management Area (GHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-grouse additional, Land User Plan (LUP) Designations

NA NA NA NA NA NA

IFTDSSBi-State Greater Sage-Grouse Habitat (BS-GSGH)

NA NA NA NA NA NA

IFTDSSBi-State Greater Sage-Grouse Connective Areas (BS-GSGC)

NA NA NA NA NA NA

IFTDSSGunnison Sage-grouse Occupied Habitat (GUSH-OH)

NA NA NA NA NA NA

IFTDSSGunnison Sage-grouse Unoccupied Habitat (GUSH-UH)

NA NA NA NA NA NA

IFTDSSGreater Sage-grouse Priority Areas for Conservation (PAC)

NA NA NA NA NA NA

IFTDSSGreater Sage-grouse Current Occupied Range (OCC)

NA NA NA NA NA NA

IFTDSSThreatened Plant (Polygon) (Removed)

NA NA NA NA NA NA

IFTDSSEndangered Plant (Polygon) (Removed)

NA NA NA NA NA NA

Primary HVRA Category: Rangeland Values

Sub-HVRAs and their QWRA response functions for each flame length class. IFTDSS Reference Data does not have a pre-populated Response Function, and is indicated below by "NA."
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

IFTDSSBLM Grazing Allotments

NA NA NA NA NA NA

IFTDSSBLM Horse and Burro Areas

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - Priority Habitat Management Area (SFA-PHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - Other Habitat Management Area (SFA-OHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - General Habitat Management Area (SFA-GHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Priority Habitat Management Areas (PHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Important Habitat Management Areas (IHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse General Habitat Management Areas (GHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Additional, Land Use Plan (LUP) Designations

NA NA NA NA NA NA

IFTDSSBi-State Greater Sage-Grouse Habitat (BS-GSGH)

NA NA NA NA NA NA

IFTDSSBi-State Greater Sage-Grouse Connective Areas (BS-GSGC)

NA NA NA NA NA NA

IFTDSSGunnison Sage-Grouse Occupied Habitat (GUSG-OH)

NA NA NA NA NA NA

IFTDSSGunnison Sage-Grouse Unoccupied Habitat (GUSG-UH)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse USFWS Priority Areas for Conservation (PAC)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse USFWS Current Occupied Range (OCC)

NA NA NA NA NA NA

Primary HVRA Category: Recreation

Sub-HVRAs and their QWRA response functions for each flame length class. IFTDSS Reference Data does not have a pre-populated Response Function, and is indicated below by "NA."
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

IFTDSSCampgrounds (BLM and USFS)

NA NA NA NA NA NA

IFTDSSNational Recreation Areas

NA NA NA NA NA NA

IFTDSSNational Historic Trails

NA NA NA NA NA NA

IFTDSSNational Recreation Trails

NA NA NA NA NA NA

IFTDSSNational Scenic Trails

NA NA NA NA NA NA

IFTDSSNational Scenic Byways

NA NA NA NA NA NA

IFTDSSUSFWS Trails

NA NA NA NA NA NA

Primary HVRA Category: Wildlife

Sub-HVRAs and their QWRA response functions for each flame length class. IFTDSS Reference Data does not have a pre-populated Response Function, and is indicated below by "NA."
Sub-HVRA 0-2 ft 2-4 ft 4-6 ft 6-8 ft 8-12 ft >12 ft

IFTDSSEndangered Invertebrate (Line) (Removed)

NA NA NA NA NA NA

IFTDSSEndangered Invertebrate (Polygon) (Removed)

NA NA NA NA NA NA

IFTDSSEndangered Vertebrate (Line) (Removed)

NA NA NA NA NA NA

IFTDSSEndangered Vertebrate (Polygon) (Removed)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - Priority Habitat Management Area (SFA-PHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area - Other Habitat Management Area (SFA-OHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Sagebrush Focal Area -General Habitat Management (SFA-GHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Priority Habitat Management Areas (PHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Important Habitat Management Areas (IHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse General Habitat Management Areas (GHMA)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse Additional, Land Use Plan (LUP) Designations

NA NA NA NA NA NA

IFTDSSBi-State Greater Sage-Grouse Habitat (BS-GSGH)

NA NA NA NA NA NA

IFTDSSBi-State Greater Sage-Grouse Connective Areas (BS-GSGC)

NA NA NA NA NA NA

IFTDSSGunnison Sage-Grouse Occupied Habitat (GUSG-OH)

NA NA NA NA NA NA

IFTDSSGunnison Sage-Grouse Unoccupied Habitat (GUSG-UH)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse USFWS Priority Areas for Conservation (PAC)

NA NA NA NA NA NA

IFTDSSGreater Sage-Grouse USFWS Current Occupied Range (OCC)

NA NA NA NA NA NA

IFTDSSProposed Threatened Invertebrate (Line) (Removed)

NA NA NA NA NA NA

IFTDSSProposed Endangered Invertebrate (Polygon) (Removed)

NA NA NA NA NA NA

IFTDSSThreatened Invertebrate (Line) (Removed)

NA NA NA NA NA NA

IFTDSSThreatened Invertebrate (Polygon) (Removed)

NA NA NA NA NA NA

IFTDSSThreatened Vertebrate (Line) (Removed)

NA NA NA NA NA NA

IFTDSSThreatened Vertebrate (Polygon) (Removed)

NA NA NA NA NA NA