LOCATION EASTPORT MIEstablished Series
TAXONOMIC CLASS: Mixed, frigid Spodic Udipsamments
TYPICAL PEDON: Eastport sand - on a southeast-facing slope of 10 percent in a forested area. (Colors are for moist soil unless otherwise stated.)
Oi--1 to 0 inches; slightly decomposed mixed hardwood and conifer leaf litter.
A--0 to 3 inches; dark gray (10YR 4/1) sand, pale brown (10YR 6/2) dry; weak medium granular structure; very friable; many medium roots; strongly acid; abrupt smooth boundary. (0 to 4 inches thick)
E--3 to 14 inches; pale brown (10YR 6/3) sand; single grain; loose; many medium roots; slightly acid; abrupt irregular boundary. (4 to 12 inches thick)
Bs1--14 to 24 inches; strong brown (7.5YR 5/6) sand; single grain; loose; ortstein occupies 10 percent of the horizon and occurs as weakly cemented chunks; common fine roots; slightly acid; clear wavy boundary.
Bs2--24 to 38 inches; brownish yellow (10YR 6/6) sand; single grain; loose; ortstein occupies 5 percent of the horizon and occurs as weakly cemented chunks; very few very fine roots; slightly acid; gradual wavy boundary. (The combined thickness of the Bs horizon is 11 to 25 inches)
C--38 to 60 inches; light yellowish brown (10YR 6/4) sand; single grain; loose; neutral.
TYPE LOCATION: Mackinac County, Michigan; about 8 miles northwest of St. Ignace; 1,800 feet north and 400 feet east of the center, sec. 14, T. 41 N., R. 5 W.
RANGE IN CHARACTERISTICS: Thickness of the solum ranges from 18 to 40 inches. Depth to free carbonates ranges from 25 to greater than 60 inches. Gravel content ranges from 0 to 15 percent throughout. Sand size of the series control section contains 25 percent or more very coarse, coarse and medium sand and less than 50 percent fine or very fine sand.
The A horizon has hue of 10YR, 7.5YR, 5YR or is neutral, value of 2 to 4, and chroma of 0 to 2. Reaction ranges from strongly acid to neutral.
The E horizon has hue of 10YR or 7.5YR, value of 5 to 7, and chroma of 2 or 3. Reaction rages from strongly acid to slightly alkaline.
The Bs horizon has hue of 7.5YR or 10YR, value of 4 to 6 and chroma of 4 to 8 or hue of 7.5YR, value of 5 or 6 and chroma of 6 or 8.
The C horizon has hue of 10YR or 7.5YR, value of 4 to 7, and chroma of 3 to 6.
COMPETING SERIES: These are the Deer Park and Nemadji soils. Deer Park soils contain more than 50 percent very fine and fine sand in the series control section. Nemadji soils have mottles associated with wetness above a depth of 40 inches.
GEOGRAPHIC SETTING: The Eastport soils are on vegetated beach ridges, plains and stabilized sand dunes along the Great Lakes. Slope gradients usually are between 4 and 18 percent and range from 0 to 45 percent. The soils formed in sandy deposits. Mean annual precipitation ranges from 27 to 33 inches, and the mean annual temperature ranges from 40 to 45 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alpena, Au Gres, Eastlake and Roscommon soils. East Lake soils are on adjoining outwash plains. Alpena soils are on lake benches and beach ridges. In addition Alpena soils are sandy-skeletal and East Lake soils have spodic horizons and have 2C horizons of gravelly sand with free carbonates. The somewhat poorly drained Au Gres and the poorly drained Roscommon soils are in lower landscape positions.
DRAINAGE AND PERMEABILITY: Excessively drained. Surface runoff is slow. Permeability is rapid.
USE AND VEGETATION: The greater part is forested to northern red oak, aspen, red maple, black cherry, paper birch, northern white-cedar, and balsam fir. Recreation is a major use. Small areas are in alfalfa or cherry orchards. The original forest was chiefly hard maple, beech, elm, ironwood, with some red pines and eastern hemlock.
DISTRIBUTION AND EXTENT: Northern Lower Peninsula and Eastern Upper Peninsula of Michigan. The series is of moderate extent.
MLRA OFFICE RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Antrim County, Michigan, 1923.
REMARKS: Diagnostic horizons and features recognized in this pedon are: ochric epipedon - the zone from the surface to 14 inches, (A and E horizons); albic horizon - the zone from 3 to 14 inches (E horizon).
ADDITIONAL DATA: Soil Interpretation Record No.: MI0101.