LOCATION ELYRIA CO
Tentative Series
PRR
02/2025
ELYRIA SERIES
Depth class: Deep and very deep
Drainage class: Well drained
Saturated hydraulic conductivity: Moderately high
Parent material: Thick to very thick fine-loamy human-transported materials over Pleistocene-aged eolian deposits derived from glaciofluvial sources
Geomorphic location: Human-transported fill on eolian-mantled plains and strath terraces
Slope range: 0 to 8 percent
Mean annual temperature: 11.0 degrees C (51.8 degrees F)
Mean annual precipitation: 406 millimeters (16.0 inches)
Taxonomic Class:
Fine-loamy, spolic, mixed, superactive, calcareous, mesic Anthroportic Ustorthents
Typical Pedon:
Elyria loam in urban, golf course. (Colors are for dry soil unless otherwise noted.)
^A--0 to 6 centimeters; brown (10YR 4/3) loam, dark brown (10YR 3/3) moist; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; many very fine roots throughout; noneffervescent; moderately acid (pH 6.0); clear smooth boundary.
^C1--6 to 19 centimeters; brown (10YR 4/3) clay loam, dark brown (10YR 3/3) moist; massive; soft, very friable, slightly sticky, moderately plastic; common fine and medium roots throughout; finely disseminated free carbonates throughout the matrix; slightly effervescent; slightly alkaline (pH 7.6); clear smooth boundary.
^C2--19 to 39 centimeters; brown (10YR 4/3) clay loam, dark brown (10YR 3/3) moist; massive; soft, very friable, moderately sticky, moderately plastic; few very fine roots; finely disseminated free carbonates throughout the matrix; few patchy distinct carbonate coats on ped faces (assumed to be inherited from fill), violently effervescent; moderately alkaline (pH 8.2); clear smooth boundary.
^C3--39 to 57 centimeters; brown (7.5YR 4/2), sandy clay loam, very dark brown (7.5YR 4/2) moist; massive; slightly hard, friable, moderately sticky, moderately plastic; few very fine roots throughout; finely disseminated free carbonates throughout the matrix; strongly effervescent; moderately alkaline (pH 8.0); gradual smooth boundary.
^C4--57 to 97 centimeters; brown (7.5YR 4/3), sandy clay loam, very dark brown (7.5YR 2.5/3) moist; massive; soft, very friable, slightly sticky, slightly plastic; few very fine roots throughout; finely disseminated free carbonates throughout the matrix; slightly effervescent; moderately alkaline (pH 8.2); clear smooth boundary.
^C5--97 to 127 centimeters; variegated brown (10YR 4/3) and brown (10YR 5/3), clay loam, dark brown (10YR 3/3) and dark yellowish brown (10YR 4/4) moist; massive; very hard, firm, moderately sticky, moderately plastic; finely disseminated free carbonates throughout the matrix; very few patchy distinct carbonate coats on ped faces (assumed to be inherited from fill), slightly effervescent; moderately alkaline (pH 8.4); clear smooth boundary.
2Bk--127 to 148 centimeters; very pale brown (10YR 7/3), clay loam, pale brown (10YR 6/3) moist; weak coarse subangular blocky structure; very hard, firm, very sticky, very plastic; finely disseminated free carbonates throughout the matrix; few patchy distinct carbonate coats on ped faces; violently effervescent; moderately alkaline (pH 8.4); clear smooth boundary.
2C--148 to 200 centimeters; light yellowish brown (10YR 6/4), loamy sand, yellowish brown (10YR 5/4) moist; single grain; loose, non-sticky, non-plastic; finely disseminated free carbonates throughout the matrix; slightly alkaline (pH 7.8).
Type Location:
Denver County, CO
USGS Quadrangle: Fitzsimons
Latitude: 39.7117500
Longitude: -104.8722306
Datum: WGS84
Coordinates sources: Hand-held GPS
Range in Characteristics:
Depth to free carbonates--0 to 15 centimeters
Thickness of human-transported material--50 to 200 centimeters
Particle-size control section (weighted average):
Clay content--28 to 35 percent
Sand content--25 to 50 percent
Total rock fragments--0 to 12 percent
^A horizon:
Hue--7.5YR or 10YR
Value-2 to 5 dry; 2 to 4 moist
Chroma--3 or 4; moist or dry
Texture (less than 2 mm fraction)--Clay loam, loam, sandy clay loam
Clay content--25 to 35 percent
Rock fragments--0 to 12 percent gravel
Calcium carbonate equivalent--0 to 3 percent
Reaction--pH 7.0 to 7.8
Thickness--5 to 25 centimeters
^C horizon(s):
Hue--7.5YR or 10YR
Value--4 to 6 dry; 3 to 5 moist
Chroma--4 or 5 dry; 3 to 5 moist
Texture (less than 2 mm fraction)--Clay loam, sandy clay loam
Clay content--20 to 35 percent
Rock fragments--0 to 15 percent gravel
Calcium carbonate equivalent--3 to 15 percent
Reaction--pH 7.4 to 8.4
Thickness--15 to 45 centimeters
^Cu horizon(s) (where present):
Hue--2.5YR to 10YR
Value--4 to 6 dry; 3 or 4 moist
Chroma--2 to 4 dry; 3 to 5 moist
Texture (less than 2 mm fraction)-- Clay loam, silty clay loam, silty clay
Clay content--25 to 35 percent
Rock fragments--5 to 20 percent gravel
Artifacts--1 to 5 percent
Calcium carbonate equivalent--1 to 5 percent
Reaction--pH 7.2 to 7.8
Thickness-15 to 30 centimeters
2Bkb horizon (when present):
Hue--10YR
Value-5 to 7 dry; 4 or 5 moist
Chroma--4 dry; 3 to 5 moist
Texture (less than 2 mm fraction)-Silty clay loam, sandy loam, coarse sand
Clay content-30 to 45 percent
Rock fragments--0 to 5 percent gravel
Calcium carbonate equivalent--3 to 14 percent
Reaction--pH 8.0 to 8.4
Thickness--20 to 35 centimeters
2C horizon (when present):
Hue--2.5Y or 10YR
Value--4 to 6 dry; 4 or 5 moist
Chroma--4 or 5 dry or moist
Texture (less than 2 mm fraction)--Fine sandy loam, sandy loam, loamy sand
Clay content--5 to 25 percent
Rock fragments--0 to 30 percent gravel
Calcium carbonate equivalent--0 to 14 percent
Reaction--pH 7.9 to 8.4
Thickness--15 to 55 centimeters
Competing Series:
Rosegulch soils: Formed in alluvium; somewhat poorly drained
Rosegully soils: Formed in alluvium
Geographic Settings:
Parent material--Thick to very thick fine-loamy human-transported materials over Pleistocene-aged eolian deposits derived from glaciofluvial sources
Landform--Human-transported fill on eolian-mantled plains and strath terraces
Slope ranges--0 to 20 percent
Mean annual air temperature--10.0 to 12.0 degrees C (50.0 to 53.6 degrees F)
Mean annual precipitation range--356 to 432 millimeters (14.0 to 17.0 inches)
Frost-free period--135 to 165 days
Elevation--1,565 to 1,725 meters (~5,135 to 5,660 feet)
Climate--continental, temperate, semi-arid; very cold and snowy winters; cool, moist springs, hot summers, with North American monsoon precipitation from July through August.
Geographically Associated Soils:
Racas soils: Found in similar landscape positions but dominantly in loess; has a fine particle size control section
Rosegulch: Found on Holocene-aged stream terraces and is somewhat poorly drained
Urbascalon: Found in similar landscape positions; has less than 50 centimeters of human-transported material
Vona: Found in similar landscape position but dominantly in eolian sands; has a coarse-loamy particle size control section
Weldurb: Found in similar landscape positions, but dominantly in loess; has less than 50 centimeters of human-transported material
Drainage and Saturated Hydraulic Conductivity:
Drainage class: Well drained
Saturated hydraulic conductivity: Moderately high (1.5 to 5 m/sec)
Use and Vegetation:
Most areas are primarily used for urban development. The potential native vegetation is little bluestem, sideoats grama, winterfat, and skunkbush sumac.
Distribution and Extent:
Plains mantled with eolian deposits on the east bank of the South Platte River; small extent in north-central Colorado; MLRA 67B.
Soil Survey Region (SSR) Responsible:
Bozeman, Montana
Series Proposed:
Denver County, CO 2025. Elyria series is the name of a neighborhood in Denver, CO.
Remarks:
Typical Pedon Taxonomic Features:
Ochric epipedon--0 to 6 centimeters (^A horizon)
Free carbonates--6 to 200 centimeters (^C horizons, 2Bk, 2C)
Secondary carbonates: 127 to 148 (2Bk horizon)
Human-transported materials--0 to 127 centimeters (^A, ^C horizons)
Lithologic discontinuity--127 centimeters
Particle-size control section--25 to 100 centimeters
Taxonomic version: Keys to Soil Taxonomy, 13th edition, (2022)
National Cooperative Soil Survey
U.S.A.