RICHARDS PEAK UNIT PRESCRIPTION 



Sale Name: Richards Peak Unit Number: 6 



Location -Section 16 TWP: 24N RGE: 27W Subd: 



Elevation: 4900 Slope: 50% (40%-75%) Aspect: N, NW, NE 



Habitat type: ABGRyXETE Acres: 58 



Soils: Andic Ustochrepts, Andic Dystrochrepts. Soils are deep and well drained. Surface layers 

 are formed in volcanic ash influenced loess. Subsoils are rocky, containing 55 to 95 percent rock 

 fragments. Soil erosion hazard and sediment delivery efficiency are moderate. 



Description of existing stand: The unit is an uneven aged, multi storied stand of Douglas-fir 

 (53%), lodgepole pine (27%), western larch (11%) and minor components of white pine, 

 ponderosa pine, alpine fir and grand fir (9%). The approximately 90 year old unit averages 152 

 trees per acre with an average diameter of 10 inches. Tree growth and vigor is declining due to 

 overstocked stand conditions. Understory is scattered in clumps, mainly in the openings created 

 in the canopy after the lodgepole pine bark beetle epidemic in the 1980's. The unit overall is 

 healthy with minor components of bark beetles and dwarf mistletoe present in the overstory. 



Treatment Objectives: 



1 . Retain 10-30 trees per acre to provide a seed source for natural regeneration, favoring 

 westem larch. 



2. Protect soil productivity by minimizing soil displacement, compaction and erosion, and 

 site productivity by retaining 10-15 tons of down woody debris and fine fuels per acre after 

 treatment. 



3. Remove shade tolerant species that have encroached upon historic westem larch cover 

 types. 



4. Promote regeneration of westem larch and white pine. 



5. Prescribe bum unit after logging to reduce current ftiel loading and prepare a seed bed for 

 natural and planted regeneration. 



Prescribed Treatment: Seed Tree 



Harvest method: Cable logging Unit. Harvest method will consist of individual tree 

 selection. Logging will use existing and newly constructed roads. Forest Officer will 

 approve landing locations prior to use. Seed Tree/ Shelterwood harvest will focus on 

 removing suppressed, intermediate, and co-dominant trees that are of poor form and vigor. 



