LOCATION GLEN WATentative Series
TAXONOMIC CLASS: Ashy, amorphic, frigid Humic Vitrixerands
TYPICAL PEDON: Glen ashy sandy loam - pasture on a one percent terrace at an elevation of 1,835 feet. (Colors are for dry soil unless otherwise noted. All textures are apparent field textures.)
Ap--0 to 11 inches; dark grayish brown (10YR 4/2) ashy sandy loam, very dark brown (10YR 2/2) moist; weak fine granular structure; slightly hard, very friable, nonsticky and nonplastic; weakly smeary; many very fine and fine roots; many very fine and fine irregular pores; 10 percent gravel; moderately acid (pH 6.0); abrupt smooth boundary. (10 to 15 inches thick)
Bw1--11 to 36 inches; reddish yellow (7.5YR 6/6) gravelly ashy sandy loam, dark brown (7.5YR 3/4) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; weakly smeary, common very fine and fine and few coarse roots; many very fine and fine irregular pores; 15 percent gravel; slightly acid (pH 6.2); gradual wavy boundary. (14 to 30 inches thick)
Bw2--36 to 47 inches; light brown (7.5YR 6/4) gravelly ashy sandy loam, dark brown (7.5YR 3/4) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; weakly smeary; few very fine and fine roots; many very fine and fine irregular pores; 15 percent gravel; slightly acid (pH 6.2); clear smooth boundary. (12 to 18 inches thick)
Bw3--47 to 60 inches; light brown (7.5YR 6/4) gravelly ashy sandy loam, dark brown (7.5YR 3/4) moist; weak fine and medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; weakly smeary; few very fine roots; many very fine and fine irregular pores; 25 percent gravel and few cobbles; slightly acid (pH 6.2)
TYPE LOCATION: Klickitat County, Washington; about 2 miles southwest of Glenwood; 200 feet south and 1,200 feet east of the northwest corner of section 21, T. 6 N., R. 12 E. (Latitude 46 degrees, 00 minutes, 00 seconds N. and Longitude 121 degrees, 18 minutes, 55 seconds W.)
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 45 to 47 degrees F. The soil moisture control section is usually moist, but is dry in all parts for 60 to 75 consecutive days. The 0 to 40 inch particle-size control section has an estimated moist bulk density of 0.65 to 0.90 g/cc, volcanic glass content of 20 to 30 percent, acid oxalate extractable aluminum plus one-half iron of 1.0 to 2.0 percent, phosphate retention of 50 to 75 percent, and 15 bar water retention of 8 to 12 percent. The umbric epipedon is 10 to 15 inches thick.
The A horizon has hue of 7.5YR or 10YR, value of 4 or 5 dry, 2 or 3 moist and chroma of 2 to 4 dry, 2 or 3 moist.
The Bw horizon has hue of 5YR or 7.5YR, value of 5 or 6 dry, 3 or 4 moist and chroma of 4 to 6 dry. Texture is gravelly ashy sandy loam or ashy sandy loam. Rock fragments average from 10 to 35 percent. Reaction is moderately acid to slightly acid.
COMPETING SERIES: These are the Kreft, Lundgren, Mountadams (T), Mullig (T), Pinbit, Sugarbowl, Timberhead, Troutlake, Volash, and Wanoga series. Sugarbowl, Troutlake, Volash and Timberhead soils are dry for 45 to 60 consecutive days. Ermabell, Lundgren and Wanoga soils are dry for 90 to 110 consecutive days. Pinbit soils are dry for 75 to 90 consecutive days. Kreft soils have 30 to 60 percent volcanic glass, acid oxalate extractable aluminum plus one-half iron of 2.0 to 3.0 percent, phosphate retention of 80 to 90 percent and have redox concentrations within 40 inches. Mountadams and Mullig soils are series currently not recognized in any progressive survey and cannot be adequately separated. Ermabell, Laidlaw, Retep and Suttle soils have a similar classification except for glassy mineralogy. Ermabell soils are dry for 90 to 110 consecutive days. Laidlaw soils have 5 to 30 percent hard firm silica nodules in the particle-size control section. Retep soils have a paralithic contact at a depth of 20 to 40 inches. Suttle soils have 15 to 35 percent cinders.
GEOGRAPHIC SETTING: Glen soils are on low terraces at elevations of 1,800 to 2,100 feet. Slopes are 0 to 2 percent. The soils formed in alluvium from basalt and volcanic ash. Summers are warm and dry, winters are cool and wet with an intermittent snow cover from December through March. The mean annual precipitation is 33 to 37 inches. The average January temperature is 27 degrees F. and the average July temperature is 66 degrees F. The mean annual temperature is 43 to 45 degrees F. The frost-free season is 50 to 90 days, although a damaging frost can occur any month of the year.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Guler, Pinbit, and Segidal series. Guler soils are on foothills and are ashy-skeletal. Pinbit soils are on terraces and are influenced by amorphic material to 60 or more inches. Segidal soils are on terraces, have an aquic moisture regime and a spodic horizon.
DRAINAGE AND PERMEABILITY: Well drained; slow runoff; moderately rapid permeability.
USE AND VEGETATION: These soils are used mainly for livestock grazing. Some is used for timber production and some for crop production. Introduced species used for pasture include quackgrass and bluegrass. Native vegetation is mainly ponderosa pine, lodgepole pine, Douglas-fir, and grand fir, with an understory of common snowberry, elk sedge, antelope bitterbrush, American vetch, rose, and Idaho fescue.
DISTRIBUTION AND EXTENT: Klickitat County, Washington; MLRA 6. The series is of small extent.
MLRA OFFICE RESPONSIBLE: Portland, Oregon
SERIES PROPOSED: Klickitat County, Washington, 1941; Yakima Indian Reservation.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Umbric epipedon - the zone from 0 to 11 inches
Cambic horizon - the zone from 11 to 60 inches.
Particle-size control section - the zone from 10 to 40 inches
Andic soil properties - the zone from 0 to 60 inches
Mineralogy based on associated Guler soil.
The Mountadams and Mullig series have same classification and need more investigation as to concept and differentiation from the Glen series. They are derived from ash and colluvium on mountains and have not been recognized to date in any progressive soil survey.
12/2005 This series originally set up within the Klickitat County soil survey until boundary change with Yakima Indian Reservation soil survey in 2003.
ADDITIONAL DATA: Partial laboratory data are available for this pedon- NSSL number 78P0258.