2019-11-20_PERMIT FILE - M2019057

• Permit No: M2019057
• IBM Index Class Name: PERMIT FILE
• Doc Date: 11/20/2019
• Doc Name: Application
• From: Jacom Ulrich
• To: DRMS
• Email Name: ERR
• Email Name: JDM
• Email Name: AWA
• Media Type: D
• Archive: No

Northern San Isabel and Western Pike National Forests.Colorado
Improved unsurfaced roads: Average annual snowfall: 50 to 100 inches.
Sphinx: severe- slope and severe erosion COMPOSITION
hazard.
Offroad vehicle roads and trails: 60 percent Sphinx and similar soils.
Sphinx: severe- slope and severe erosion 25 percent Rock outcrop.
hazard. Contrasting inclusions
Foot trails and paths: 10 percent eroded soils on steep slopes
Sphinx: severe- slope and severe erosion 5 percent deep soils on toeslopes.
hazard.
Revegetation limitations: TYPICAL PROFILES:
Sphinx: severe- slope and severe erosion Sphinx
hazel d. low available water capacity. low Surface layer(s):
inherent fertility, and shallow depth to soft 0 to 3 inches -yellowish brown, very gravelly
bedrock. coarse sandy loam.
Re vegetation considerations: Trees are slow to Subsurface layer(s):
return after a disturbance. Planting drought 3 to 12 inches - reddish yellow, extremely
tolerant grasses and forbs have the best chance gravelly loamy coarse sand.
of success. Mulch or similar treatment will protect Weathered bedrock:
the soil from erosion, help conserve soil moisture 12 to 60 inches- soft granitic bedrock (grus)
and protect emerging plant seedlings. SOIL PROPERTIES AND QUALITIES
Timber management considerations: Limited by
slope. severe erosion hazard, windthrow hazard. Sphinx
and low available water capacity on shallow soils Effective rooting depth: less than 20 inches.
Plant trees that are drought tolerant or revegetate Drainage class: excessively.
with grasses and forbs. Trees to plant include Depth to seasonal high water table: greater
ponderosa pine and Rocky Mountain juniper. than 6 feet.
Wildlife management considerations: This map Available water capacity: very low. •
unit provides shelter and limited food during late Permeability: very rapid.
spring through fall months. Thinning cr creating Runoff: rapid.
small openings in the overstory canopy cover can Rock outcrop
stimulate understory productivity. Landform: cliffs.
Other management considerations: Parent material: residuum.
Management activities are limited by slopes and Rock type: granitic.
severe erosion hazard. Runoff: rapid.
Acid precipitation buffering capacity: low. VEGETATION
Potential natural communities:
Sphinx: ponderosa pine-Douglas-fir/mountain
Map Unit: 794Y—Sphinx family - Rock outcrop muhly (Pipo-Psme/Mumol) and ponderosa
complex, 40 to 150 percent slopes pine/Arizona fescue (Pipo/Fear1).
Ecological Land Unit: 794Y—ponderosa pine Seral stages: dominated by plants of the
and Douglas-fir on lower montane, dry, south respective potential natural communities
facing canyons. hills. and mountains. Present vegetation: dominated by plants of the
MAP UNIT SETTINGS respective potential natural communities
Location: mountainous areas where granitic rocks USE AND MANAGEMENT CONSIDERATIONS
predominate Major uses: wildlife habitat and watershed.
Landform: canyons, hills, and mountains. Mass movement potential:
Parent material: residuum Landslides: low.
Geologic symbol: Yg. Yp, Xg, and YXg. Debris flows: moderate.
Elevation range: 6.500 to 9,000 feet. Snow avalanche: moderate.
Aspect: south Sediment delivery efficiency: high.
Climatic zone: lower montane, dry
Mean annual precipitation: 12 to 16 inches. t
Mean annual air temperature: 40°F to 48°F ! 11
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