IDENTIFIERS

Current Taxon Name (Soil Name): Atlas

OSD

Series Extent

User Site ID: 2011IL135280

User Pedon ID: 2011IL135280

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 12N7649

NCSS Pedon Lab Data NASIS Record ID - 72990

Print Date: 6/1/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 39.2226139

Std. Longitude: -89.2368472

Datum: WGS84

Township: 9N

Range: 1W

Section: 18

PLSS Details: MLRA 114B

Location Description: Located in Montgomery County in an Bunkum(515C2) map unit (Windmill Site). site closest to the road.

State: Illinois

County: IL135—Montgomery

MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain

Non-MLRA Soil Survey Area: IL135—Montgomery County, Illinois

7.5 Minute USGS Quad: 39089-B2—Ramsey Lake, Illinois

PEDON

Describers Name: Rick Francen

Current Taxonomic Class: Fine, smectitic, mesic Aeric Chromic Vertic Epiaqualfs

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: full pedon description

Pedon Record Orgin: PedonPC

Correlated Information:

Soil Name - Atlas

Classificaton Date - 6/13/2012

Soil Taxonomic Edition - tenth edition

Moisture Class - udic

Moisture Subclass - aeric

Sampled As Information:

Soil Name - Atlas

Classificaton Date - 1/11/2012

Dynamic Soil Properties:

Erosion Class - 3

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: modern soil is largely super-imposed on a Sangamon paleosol

Landscape: till plain

Landform: interfluve

Geomorphic Component Hills: nose slope

Hill Slope Profile: shoulder

Slope Shape Across: convex

Slope Shape Down: convex

Drainage Class: somewhat poorly

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 1/11/2012 (entry creation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
5	—	—	—	—	180	1025	—	190	13	—	—	—	—	—	—	—	—	—	—

Ap—0 to 10 centimeters (0.0 to 3.9 inches); 80 percent brown (10YR 4/3) and 20 percent dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; silty clay loam; weak fine granular structure; friable; 10.0 fine roots; fragments; slightly acid, pH 6.2; abrupt wavy boundary.

2Bt—10 to 23 centimeters (3.9 to 9.1 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate medium subangular blocky structure; firm; 3.0 fine roots; 35 percent faint brown (10YR 4/3) clay films on all faces of peds; 10 percent medium distinct gray (10YR 6/1) iron depletions in matrix and 25 percent medium distinct 10YR 4/8 (10YR 4/8) masses of oxidized iron in matrix; fragments; moderately acid, pH 6.0; clear wavy boundary. continuous - phpvsfiid 1144569; continuous - phpvsfiid 1144569

2Btg1—23 to 53 centimeters (9.1 to 20.9 inches); dark grayish brown (10YR 4/2) silty clay loam; moderate medium subangular blocky structure; firm; 0.8 fine roots; 35 percent distinct dark gray (10YR 4/1) clay films on all faces of peds; 10 percent fine faint gray (10YR 5/1) iron depletions in matrix and 10 percent medium prominent dark yellowish brown (10YR 4/6) masses of oxidized iron in matrix and 10 percent fine distinct spherical black (7.5YR 2.5/1) manganese masses with sharp boundaries throughout; fragments; neutral, pH 6.6; gradual wavy boundary. continuous - phpvsfiid 1144570; continuous - phpvsfiid 1144570

2Btg2—53 to 84 centimeters (20.9 to 33.1 inches); dark grayish brown (10YR 4/2) silty clay loam; moderate medium subangular blocky structure; firm; 0.8 fine roots; 10 percent faint dark gray (10YR 4/1) clay films on all faces of peds; 1 percent medium prominent strong brown (7.5YR 4/6) and dark yellowish brown (10YR 4/6) masses of oxidized iron in matrix and 10 percent fine faint gray (10YR 5/1) iron depletions in matrix and 10 percent fine distinct spherical black (7.5YR 2.5/1) manganese masses with sharp boundaries throughout; 1 percent by volume mixed fragments; neutral, pH 6.8; gradual wavy boundary. discontinuous - phpvsfiid 1144571; discontinuous - phpvsfiid 1144571

2Btg3—84 to 147 centimeters (33.1 to 57.9 inches); dark gray (10YR 4/1) silty clay loam; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 0.8 fine roots; 35 percent distinct dark gray (10YR 4/1) clay films on all faces of peds; 1 percent medium prominent dark yellowish brown (10YR 4/6) and strong brown (7.5YR 4/6) masses of oxidized iron in matrix and 1 percent fine distinct spherical black (7.5YR 2.5/1) manganese masses with clear boundaries throughout; 3 percent by volume mixed fragments; neutral, pH 6.8; gradual wavy boundary. continuous - phpvsfiid 1144572; continuous - phpvsfiid 1144572

2Btg4—147 to 183 centimeters (57.9 to 72.0 inches); dark gray (10YR 4/1) silty clay loam; moderate medium prismatic structure; firm; 0.8 very fine roots; 35 percent distinct dark gray (10YR 4/1) clay films on vertical faces of peds; 10 percent medium prominent dark yellowish brown (10YR 4/6) masses of oxidized iron throughout and 10 percent fine distinct spherical black (7.5YR 2.5/1) manganese masses with clear boundaries throughout; 3 percent by volume mixed fragments; neutral, pH 7.0; clear wavy boundary. discontinuous - phpvsfiid 1144573; discontinuous - phpvsfiid 1144573

2Cg—183 to 203 centimeters (72.0 to 79.9 inches); dark gray (10YR 4/1) sandy clay loam; massive; friable; 0.1 very fine roots; 25 percent medium prominent dark yellowish brown (10YR 4/6) masses of oxidized iron in matrix; 7 percent by volume mixed fragments; neutral, pH 7.0.