Established Series


The Hesch series consists of well drained soils moderately deep to sandstone. They formed in a mixture of a loamy deposit and residuum weathered from sandstone. These soils are mainly in the uplands. Slope ranges from 0 to 45 percent. Mean annual precipitation is about 813 millimeters, and mean annual temperature is about 9 degrees C.

TAXONOMIC CLASS: Coarse-loamy, mixed, active, mesic Typic Argiudolls

TYPICAL PEDON: Hesch fine sandy loam - on a 14 percent slope in a cultivated field at an elevation of about 226 meters. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 20 centimeters; very dark brown (10YR 2/2) fine sandy loam, dark grayish brown (10YR 4/2) dry; weak fine granular structure; friable; common fine roots; slightly acid; abrupt smooth boundary.

A--20 to 30 centimeters; very dark grayish brown (10YR 3/2) fine sandy loam, grayish brown (10YR 5/2) dry; weak fine subangular blocky structure; friable; common fine roots; moderately acid; gradual wavy boundary. (Combined thickness of the Ap and A horizons ranges from 25 to 41 centimeters.)

BA--30 to 48 centimeters; brown (10YR 4/3) fine sandy loam; weak medium subangular blocky structure; friable, common fine roots; moderately acid; clear wavy boundary. (0 to 18 centimeters thick)

Bt1--48 to 74 centimeters; brown (7.5YR 4/4) loam; moderate medium subangular blocky structure; firm; common fine roots; faint patchy clay films; about 5 percent sandstone fragments by volume; moderately acid; clear wavy boundary. (15 to 30 centimeters thick)

Bt2--74 to 81 centimeters; dark yellowish brown (10YR 4/4) sandy loam; weak medium subangular blocky structure; very friable; few fine roots; clay bridging between sand grains; few brown (10YR 4/3) organic stains on some vertical faces of peds; about 10 percent sandstone fragments; by volume; moderately acid; clear wavy boundary. (0 to 13 centimeters thick)

2C--81 to 97 centimeters; yellowish brown (10YR 5/6) sand; single grain; loose, about 12 percent sandstone fragments by volume; moderately acid; clear wavy boundary. (0 to 25 centimeters thick)

2Cr--97 to 152 centimeters; brown (10YR 5/3) yellowish brown (10YR 5/6) and light gray (10YR 7/2) poorly cemented sandstone; moderately acid.

TYPE LOCATION: Major Land Resource Area (MLRA) 105-Northern Mississippi Valley Loess Hills, Iowa County, Wisconsin; located about 2 miles north of Clyde; 125 feet west and 1,165 feet south of the northeast corner, sec. 26, T. 8 N., R. 2 E.; USGS Lone Rock topographic quadrangle; latitude 43 degrees, 8 minutes, 43 seconds N.; longitude 90 degrees, 12 minutes, 46 seconds W., NAD 83.

Depth to paralithic contact--51 to 102 centimeters
Rock fragment content--0 to 12 percent sandstone channers less than 8 centimeters in size occur in the solum and in the substratum
Reaction--strongly acid to slightly acid in the solum and very strongly acid to medium acid in the substratum
Content of clay in the particle-size control section (weighted average) 10 to 18 percent; clay films are faint and patchy on faces of peds or are expressed as bridging between sand grains

A horizon:
Hue--10YR or 7.5YR
Value--2 or 3
Chroma--1 to 3
Texture--sandy loam, fine sandy loam, or loam

BA horizon:
Hue--10YR or 7.5YR
Value3 to 5
Chroma--3 to 5
Texture--sandy loam, fine sandy loam, or loam

Bt horizon:
Hue--10YR or 7.5YR
Value3 to 6
Chroma--3 to 6
Texture--typically, it is fine sandy loam, sandy loam, or loam but some pedons have thin subhorizons of sandy clay loam

BC or C horizon (when present):
Texture--sand, loamy sand, fine sand, or loamy fine sand

COMPETING SERIES: These are the Coyne and Elston series.
Coyne and Elston--do not have sandstone bedrock within a depth of 51 to 102 centimeters

Parent Material--a mixture dominantly of residuum weathered from sandstone and some loess
Landform--typically on undulating to strongly sloping uplands, in some places they are on stream terrace backslopes and on floodplain steps.
Slope--commonly between 12 and 20 percent and range from 0 to 45 percent
Mean annual air temperature--7 to 12 degrees C
Mean annual precipitation--711 to 889 millimeters.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Boone, Eleva, Elkmound, and Sylvester soils.
Boone, Eleva, and Elkmound--nearby, generally on steeper slopes and they do not have mollic epipedons; depth to paralithic contact is at less than 50 centimeters in the Elkmound
Sylvester--same landscape but have silty sola

Drainage class--well drained--a saturated zone does not occur within a depth of 1.8 meters during April to June in normal years
Saturated hydraulic conductivity--4.23-42.34 micrometers per second (moderate or moderately rapid) in the solum

USE AND VEGETATION: These soils are used mostly for cropland. Many of the more sloping areas are used for pasture. Native vegetation was mixed grasses with scattered oak and hickory trees.

Physiographic division--Interior Plains
Physiographic Province--Central Lowland
Physiographic sections--Wisconsin driftless and Illinois till plain sections
MLRAsPrimarily the Northern Mississippi Valley Loess Hills (105); also in the Illinois and Iowa Deep Loess and Drift, Eastern Part (108A)
LRR M; southwestern Wisconsin, central Iowa, southeastern Minnesota and northern Illinois
Extentnot extensive


SERIES ESTABLISHED: La Crosse County, Wisconsin, 1957.


Particle-size control section--the zone from a depth of 48 to 81 centimeters (Bt1 and Bt2 horizons);
series control section--the zone from the surface of the soil to a depth of 122 centimeters (A, BA, Bt, 2C and the upper part of the 2Cr horizon)

Diagnostic horizons and features recognized in this pedon include:
Mollic epipedon--the zone from the surface of the soil to a depth of 30 centimeters(Ap, A horizons);
argillic horizon--the zone from 48 to 81 centimeters(Bt1, Bt2 horizons);
other features--udic moisture regime; mesic soil temperature regime.

The Hesch soils correlated in Guthrie county IA (1968) do not fit the current concept of this soil.

Taxonomy version--Keys to Soil Taxonomy, tenth edition, 2006.

National Cooperative Soil Survey