LOCATION EGGLAKE MNEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, frigid Mollic Endoaqualfs
TYPICAL PEDON: Egglake loam on a west facing slope of 1 percent under aspen and ash at about 1600 feet elevation. (Colors are for moist soil unless otherwise stated).
A--0 to 4 inches; black (10YR 2/1) loam, very dark grayish brown (10YR 3/2) dry; weak fine granular structure; friable; about 4 percent gravel and 1 percent cobbles; neutral; clear smooth boundary. (3 to 9 inches thick)
E--4 to 9 inches; grayish brown (2.5Y 5/2) fine sandy loam, gray (10YR 6/1) dry; weak medium platy structure parting to weak fine subangular blocky; very friable; about 7 percent gravel and 1 percent cobbles; neutral; clear smooth boundary. (0 to 10 inches thick)
Btg--9 to 25 inches; grayish brown (2.5Y 5/2) sandy clay loam; weak fine subangular blocky structure; friable; common fine prominent dark reddish brown (5YR 3/4) Fe concentrations; few thin very dark grayish brown (10YR 3/2) clay films on faces of peds; about 7 percent gravel and 1 percent cobbles; neutral; gradual smooth boundary. (10 to 48 inches thick)
Bg--25 to 34 inches; light brownish gray (2.5Y 6/2) coarse sandy loam; weak medium subangular blocky structure; very friable; common fine prominent yellowish brown (10YR 5/6) Fe concentrations; about 8 percent gravel and 2 percent cobbles; neutral; clear smooth boundary. (0 to 15 inches thick)
Bkg--34 to 80 inches; mixed light olive gray (5Y 6/2) and light yellowish brown (2.5Y 6/4) coarse sandy loam; weak medium platy structure; very friable; few fine prominent yellowish brown (10YR 5/6) Fe concentrations; common light gray (10YR 7/2) segregated lime in filaments and threads; about 8 percent gravel and 2 percent cobbles; slightly effervescent; slightly alkaline.
TYPE LOCATION: Becker County, Minnesota; about 19 miles east and 4 miles north of Detroit Lakes; 2600 feet south and 1600 feet west of the northeast corner, sec. 2, T.139N., R.38W; Ponsford quadrangle, Lat. 46 degrees 52 minutes 58 seconds N. and Lon. 95 degrees 26 minutes 33 seconds W.
RANGE IN CHARACTERISTICS: The depth to free carbonates ranges from 20 to 60 inches or more. Rock fragments of mixed lithology comprise about 2 to 10 percent of the volume in all horizons.
Some pedons have an O horizon as much as 2 inches thick consisting mainly of forest litter, principally leaves, twigs, and fine roots.
The A horizon has hue of 10YR or 2.5Y or is neutral, value of 2 or 3, and chroma of 0 to 2. In cultivated pedons the Ap horizon has value of 5 or less when dry. It is loam, fine sandy loam, sandy loam, or silt loam. It is moderately acid to neutral.
The E horizon has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 1 or 2. It is fine sandy loam, loam or sandy loam. It is moderately acid to neutral.
The Btg horizon has hue of 2.5Y or 5Y, value of 4 to 6, and chroma of 1 or 2. It has faint to prominent redoximorphic features in some to all parts. It is sandy clay loam, clay loam, sandy loam, or loam. It is moderately acid to neutral. It averages 18 to 30 percent clay and 45 to 65 percent sand.
The Bg horizon has hue of 2.5Y or 5Y, value of 4 to 6, and chroma of 1 or 2. It is sandy loam or coarse sandy loam. It is slightly acid or neutral.
The Bkg and Cg horizon (when present) has hue of 2.5Y or 5Y, value of 5 or 6, and chroma of 1 or 2, It is fine sandy loam, loam, sandy loam or coarse sandy loam. It is slightly alkaline or moderately alkaline. It averages 10 to 18 percent clay and 45 to 65 percent sand.
COMPETING SERIES: There are presently no series in this family. However when classified as Mollic Ochraqualfs Talmoon and Willosippi(T) soils were competing. Talmoon soils have less than 45 percent sand in the argillic horizon. Willosippi soils are stratified in the series control section and do not have rock fragments in the series control section.
GEOGRAPHIC SETTING: Egglake soils have plane to slightly concave slopes or are in closed depressions on moraines. Slope gradients are less than 2 percent. They formed in calcareous glacial till of Late Wisconsin Age. The mean annual temperature ranges from 38 to 42 degrees F. The mean annual precipitation ranges from 22 to 27 inches. Frost free days range from 90 to 130 days. The elevation above sea level ranges from 1000 to 1800 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cathro, Kandota, Rifle, Seelyeville, Snellman, and Wykeham soils. The very poorly drained Cathro, Seelyeville, and Rifle soils are in depressions. The well drained Kandota and Snellman soils and moderately well drained. Wykeham soils are on higher lying positions.
DRAINAGE AND PERMEABILITY: Poorly drained and very poorly drained. Surface runoff is slow or ponded. Permeability is moderate. The poorly drained phase has an apparent water table at a depth of .5 to 1.5 feet at some time from October to July in most years. The very poorly drained phase has an apparent water table at plus 1 to .5 feet at some time from March to December in most years.
USE AND VEGETATION: Most of this soil is forested and some is used for cropland or pasture. Native vegetation is mixed hardwood-coniferous forest.
DISTRIBUTION AND EXTENT: North central Minnesota. This series is inextensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Mahnomen County, Minnesota, 1992.
REMARKS: Diagnostic horizons and features identified in this soil are: Ochric epipedon - the zone from the surface to a depth of 9 inches (A and E horizons); Argillic horizon - the zone from 9 to 25 inches (Bt horizon); Aquic moisture condition based on low chroma matrix and high chroma redoximorphic features in Btg horizon.
ADDITIONAL DATA: Refer to Minnesota Agricultural Experiment Station CFC 4702 for the lab results of a similar pedon. Soil Interpretation Record numbers MN0654 and MN0753-depressional phase.