Established Series


The Daycreek series consists of very deep, somewhat poorly drained, rapidly permeable soils that formed in sandy eolian sediment. These soils occur on valley floors, flats, or depressions surrounded by dunes of the Central Rolling Red Prairies (MLRA 80A). Slopes ranges from 0 to 2 percent. Mean annual precipitation is 660 mm (26 in) and mean annual temperature is 15 degrees C (59 degrees F).

TAXONOMIC CLASS: Mixed, thermic Aquic Ustipsamments

TYPICAL PEDON: Daycreek loamy fine sand, on a south-facing, concave, 0 to 2 percent slope in rangeland at an elevation of 393 m (1288 ft). (Colors are for dry soil unless otherwise stated.)

A--0 to 20 cm (0 to 8 in); brown (7.5YR 5/2) loamy fine sand, brown (7.5YR 4/2) moist; weak fine granular structure; soft, very friable; many fine and medium roots; 2 percent fine distinct brown (7.5YR 5/4) masses of oxidized iron with clear boundaries; strongly effervescent; moderately alkaline; clear wavy boundary. (Thickness of the A Horizon 15 to 30 cm [6 to 12 in])

AC--20 to 58 cm (8 to 23 in); light brown (7.5YR 6/4) fine sand, brown (7.5YR 5/4), moist; weak coarse subangular blocky structure; soft, very friable; common fine roots; 2 percent fine distinct red (2.5YR 4/6) masses of oxidized iron with clear boundaries; strongly effervescent; moderately alkaline; gradual smooth boundary. (Thickness of the AC horizon is 25 to 64 cm [10 to 25 in])

C1--58 to 104 cm (23 to 41 in); light brown (7.5YR 6/4) fine sand, brown (7.5YR 5/4) moist; single grain; loose, loose; few fine roots; 2 percent medium prominent strong brown (7.5YR 5/8) masses of oxidized iron with clear boundaries; 2 percent medium distinct light brownish gray (10YR 6/2) masses of depleted iron with clear boundaries; root channels are lined with grayish brown (10YR 5/2) masses of depleted iron; few black stains; strongly effervescent; moderately alkaline; gradual smooth boundary.

C2--104 to 203 cm (41 to 80 in); brown (7.5YR 5/4) fine sand, brown (7.5YR 4/4) moist; single grain; loose, loose; 50 percent stratified with common thin strata of loamy fine sand and sand; moderately alkaline.

TYPE LOCATION: Woods County, Oklahoma; approximately 17 miles east and 12 miles south of Waynoka; 1850 feet north and 1500 feet east of the southwest corner of sec. 2, T. 22 N., R. 13 W.

USGS Topographic Quadrangle: Glass Mountain SE, OK
Latitude: 36 degrees, 24 minutes, 38.32 seconds N
Longitude: 98 degrees, 33 minutes, 52.41 seconds W

Decimal Degrees:
Latitude: 36.41064
Longitude: -98.56456
Datum: NAD83

UTM Easting: 539041 m
UTM Northing: 4029585 m
UTM Zone: 14N

Depth to free carbonates: within 102 cm (40 in) of the soil surface

A horizon:
Hue: 7.5YR or 10YR
Value: 3 to 5 dry, and 2 to 4 moist
Chroma: 2 or 3 dry, moist
Texture: fine sand, loamy sand, loamy fine sand, or fine sandy loam
Effervescence: none to strongly
Reaction: neutral to moderately alkaline

AC and C horizons:
Hue: 7.5YR or 10YR
Value: 5 to 8 dry, 4 to 6 moist
Chroma: 3 or 4 dry, moist
Texture: sand, fine sand, loamy sand, or loamy fine sand
Redoximorphic concentrations: amount-2 to 30 percent by volume; size-2 to 20 mm; contrast-distinct or prominent with higher chroma and redder hues than the matrix; kind-masses of oxidized iron; location-matrix
Redoximorphic depletions: amount-0 to 40 percent; size-2 to 25 mm; distinctness-distinct to prominent; kind-masses of iron depletions; location-matrix and pore linings
Effervescence: none to strong
Reaction: slightly alkaline or moderately alkaline

COMPETING SERIES: There are no series in this family. Soils in similar families include Derby, Eda, Goodnight, Jester and Likes series.
Derby and Eda soils: have argillic horizons
Goodnight and Jester soils: do not have a water table within 152 cm (60 in) of the soil surface
Likes soils: have visible calcium carbonate to the soil surface and occur in drier climates

Parent material: Eolian sands
Landscape: Dune Fields
Landform: Valley floors or depressions in between dunes
Slope: 0 to 2 percent
Mean annual precipitation: 686 to 813 mm (27 to 32 in)
Thornthwaite Annual P-E Indices: 44 to 50
Mean annual air temperature: 14 to 17 degrees C (57 to 62 degrees F)
Frost Free Days: 190 to 220 days
Elevation: 305 to 457 m (1000 to 1500 ft)

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Aline, Goltry, and Tivoli soils.
Aline, Goltry, and Tivoli soils: are on higher positions which have undulating to dune-like topography
Aline and Goltry soils: have argillic horizons
Tivoli soils: do not have redoximorphic features within depths of 102 cm (40 in)

Drainage: somewhat poorly drained
Runoff: very low
Permeability: rapid
Seasonal water table: fluctuates from depths of 61 cm (24 in) during wet seasons to 152 cm (60 in) during dry periods

USE AND VEGETATION: Used for native rangeland. Native vegetation is tall grasses dominated by sand bluestem, switchgrass, indiangrass, and eastern gramagrass.

General Location: Central Oklahoma general associated with dunes of the Canadian, Cimarron, and Salt Fork of the Arkansas rivers.
LRR H-Central Great Plains Winter Wheat and Range Region
MLRA 80A-Central Rolling Red Prairies
Extent: moderate


SERIES ESTABLISHED: Woods County, Oklahoma, 1995

Soil Interpretation Record: OK0430

Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: 0 to 20 cm (0 to 8 in) (A horizon)
Aquic conditions: within 100 cm (40 in) of the mineral soil surface, with distinct or prominent redoximorphic concentrations

These soils were formerly included in the Dillwyn series in earlier surveys in the Central Rolling Red Prairies (MLRA 80A).

Edited 03/2018 (JAD-AMS) Updated pedon description, Range in Characteristics, and other sections.


TAXONOMIC VERSION: Keys to Soil Taxonomy, Twelfth edition, 2014

National Cooperative Soil Survey