Henry M. Jackson Wilderness Air Quality Report
Wilderness ID: 232
Wilderness Name: Henry M. Jackson Wilderness
Henry M. Jackson Wilderness Air Quality Report
National Forest: Mount Baker National Forest, Snoqualmie National Forest, Wenatchee National Forest
State: WA
Counties: Chelan, King, Snohomish
General Location: Northern Washington Cascade Range
Acres: 103,297
Thursday, May 17, 2012
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Henry M. Jackson Wilderness Air Quality Report
Wilderness ID: 232
Wilderness Name: Henry M. Jackson Wilderness
Wilderness Categories
Information Specific to this Wilderness
Year Established
1984
Establishment Notes
Washington State Wilderness Act of 1984
Designation
Clean Air Act Class 2
Administrative
Mount Baker-Snoqualmie National Forest, Okanogan-Wenatchee National Forests
Unique Landscape Features
Straddling more than 30 miles of the craggy north-south trending crest of the
Cascade Mountains, with deep glacial valleys spreading out east and west from the
crest, this Wilderness is perhaps most distinctive in its northwest section. Here you
will find terrain reminiscent of the Swiss Alps: glacial basins surrounded by raggedy
ridgelines supporting sharp spires and imposing rock towers, attractions to many
mountain climbers. Snow often accumulates to a depth of 20 feet in the higher
country, and remains well into summer, eventually melting into the 60-plus lakes,
which range from small pools of water to Blanca Lake's approximately 180 acres in
the northwest section. A tall forest covers the lower elevations, then thins out and
changes in species to eventually open into broad meadows on many ridge tops. This
Wilderness shares its northeast border with the huge Glacier Peak Wilderness..
Lakebed Geology Sensitivity
High
Lakebed Geology Composition
gneiss quartzite schist granite (41%), andesite dacite diorite phylite (39%), basalt
gabbro wacke argillite undifferentiated volcanic rocks (3%), amphibolite hornfels
paragneiss undifferentiated metamorphic roc (11%), Unknown buffering capacity
(6%), GC 1+2 (80%), GC 1+2+3 (83%), GC 4+5+6 (17%)
Not Reported
Not Reported
Visitor Use
Mean Annual Precipitation
Elevation Range
Mean Max Aug Temp
Mean Min Dec Temp
Lake Acres
Pond Acres
Lake Count
Pond Count
TES Flora
TES Wildlife
TES Fish
Ozone Sensitive Plants
522 - 2372 (meters)
Not Reported
Not Reported
629
79
16
35
Botrychium minganense, Botrychium montanum, Buxbaumia viridis, Calicium
glaucellum, Calicium viride, Carex proposita, Chaenotheca ferruginea, Cortinarius
barlowensis, Craterellus tubaeformis, Galerina atkinsoniana, Galium kamtschaticum,
Gomphus floccosus, Gyromitra esculenta, Helvella crassitunicata, Hydnum
umbilicatum, Hypogymnia duplicata, Kumlienia cooleyae, Leptogium, Lobaria
linita, Lobaria oregana, Mycena overholtsii, Nephroma bellum, Platanthera
chorisiana, Pseudocyphellaria rainierensis, Ptilidium californicum, Ramaria
rubripermanens, Rhizomnium nudum, Swertia perennis, Thaxterogaster pingue,
Tholurna dissimilis
Gray Wolf, Northern Spotted Owl
steelhead
Red elderberry, Scoulers willow, Thinleaf huckleberry
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Henry M. Jackson Wilderness Air Quality Report
Wilderness ID: 232
Wilderness Categories
Air Quality Sensitive Lichens
Cultural Resources
Status/Trends: Acid Deposition:
Status/Trends: Nutrient
Enrichment:
Status/Trends: Ozone Impacts:
Wilderness Name: Henry M. Jackson Wilderness
Information Specific to this Wilderness
Alectoria sarmentosa, Cavernularia hultenii, Hypogymnia apinnata, Hypogymnia
occidentalis, Nodobryoria oregana, Parmeliopsis hyperopta, Platismatia norvegica
Not Reported
Not Reported
Not Reported
Not Reported
AQRV's
Fauna
Fauna Priority: Low
Fauna Receptor: Fish
Fauna Indicator: Concentration of methyl mercury
Fauna Trends: Not Reported
Fauna Actions:
Sample fish for mercury.
Flora
Flora Priority: High
Flora Receptor: Lichens
Flora Indicator: Changes in community composition
Flora Trends: Not Reported
Flora Priority 2: High
Flora Receptor 2: Lichens
Flora Indicator 2: Concentrations of N, S, P, Cd, Cr, Pb, Hg, Ni, Ti, V and Zn
Flora Trends 2: Not Reported
Flora Priority 3: Medium
Flora Receptor 3: Ozone
Flora Indicator 3: Visible injury on ozone-sensitive plants
Flora Trends 3: Not Reported
Flora Actions:
Increase number of lichen plots from 2 to 5 in order to achieve 1 plot/20,000 acre density. Survey sensitive vegetation for
ozone injury while in the field. Repeat plot visits once every 10 years to monitor for trends.
Visibility
Visibility Priority: Medium
Visibility Receptor: Scenic Views
Visibility Indicator: Regional haze
Visibility Trends: Not Reported
Visibility Actions
Visibility is represented by the IMPROVE monitor at Snoqualmie Pass (SNPA1). See Washington Regional Haze Plan
and IMPROVE monitoring reports for more information.
Water
Water Priority: High
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Henry M. Jackson Wilderness Air Quality Report
Wilderness ID: 232
Wilderness Name: Henry M. Jackson Wilderness
Water Receptor: Water Chemistry
Water Indicator: ANC
Water Trends: Not Reported
Water Priority 2: High
Water Receptor 2: Water Chemistry
Water Indicator 2: DIN: TP
Water Trends 2: Not Reported
Water Priority 3: Low
Water Receptor 3: Diatoms
Water Indicator 3: Community Composition
Water Trends 3: Not Reported
Water Actions:
Repeat visit to Heather and Joan Lake for ANC and nutrient ratios.
Challenge Points
Fauna Challenge Points: 0
Flora Challenge Points: 4
Total Plots: 2
Desired Plots: 5
Additional Plots Needed: 3
Data Type: Baseline
Round 1 Visits: 0
Round 2 Visits: 2
Baseline %: 39
Trends %: 0
Visibility Challenge Points: Not Reported
Water Challenge Points: 8
Thursday, May 17, 2012
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