IDENTIFIERS

Current Taxon Name (Soil Name): Union

OSD

Series Extent

User Site ID: 1999MO055035M

User Pedon ID: 1999MO055035

Vegetation Plot ID: 1999MO055035

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - MCL

Lab Pedon # - M9905535

Print Date: 2/16/2025

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: 38.0877333

Std. Longitude: -91.2898500

Datum: WGS84

Township: T39N

Range: R3W

Section: 19

PLSS Details: 1800 feet W and 1440 feet S of the NE corner

Location Description: MDC at tower near Hwy H at 1800 feet west and 1440 feet south of NE corner of Sec. 19 T39N, R3W

State: Missouri

County: MO055—Crawford

MLRA: 116A—Ozark Highland

Non-MLRA Soil Survey Area: MO055—Crawford County, Missouri

7.5 Minute USGS Quad: 38091-A3—Leasburg, Missouri

PEDON

Describers Name: RT/JF

Current Taxonomic Class: Fine, mixed, superactive, mesic Oxyaquic Fragiudalfs

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: Converted from PDP 3.x

Correlated Information:

Soil Name - Union

PSC - 25 to 75 cm.

Classificaton Date - 12/10/2012

Classifier - J.R. Perkins

Soil Taxonomic Edition - eleventh edition

Moisture Subclass - udic

Sampled As Information:

Soil Name - Union

Taxonomic Class - Fine, mixed Oxyaquic Fragiudalfs

Taxon Kind - series

PSC - 25 to 75 cm.

Classificaton Date - 12/22/1999

Moisture Class - udic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

Certification Status: certified

SITE

Parent Material: fine-silty loess over clayey loess over pedisediment over residuum

Landscape: hills

Landform: ridge

Geomorphic Component Hills: interfluve

Hill Slope Profile: summit

Slope Position: middle third

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Drainage Class: moderately well

Geology: Pennslyvanian Undifferentiated formation of the Pennslyvanian Undifferentiated group.

Surface Fragments:

Benchmark Soil?: yes

VEGETATION

SITE OBSERVATION

Observation Date: 12/22/1999 (actual site observation date)

Air Photo ID: E-5

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - conifers

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
PINUS	Pinus	pine	—	—	—

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
abrupt textural change fragipan	noncoherent noncoherent	25 - 25 76 - 124	- 0 - - 48 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon albic horizon argillic horizon abrupt textural change lithologic discontinuity redox depletions with chroma 2 or less lithologic discontinuity fragipan lithologic discontinuity	0—10 10—25 25—183 25—25 38—76 56—183 76—124 76—124 124—183	—10— —15— —158— —0— —38— —127— —48— —48— —59—

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
3	—	—	318.5	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

A—0 to 10 centimeters (0.0 to 3.9 inches); brown (10YR 4/3), light brownish gray (10YR 6/2), dry; silt loam; 12 percent clay; weak fine granular structure; friable; common (3.0) very fine roots and common (3.0) medium roots and common (3.0) fine roots and common (3.0) coarse roots; fragments; extremely acid, pH 4.4, pH meter; clear smooth boundary. Lab sample # MU062556

E—10 to 25 centimeters (3.9 to 9.8 inches); brown (10YR 5/3) silt loam; 12 percent clay; weak medium subangular blocky, and weak fine subangular blocky structure; friable; few (0.5) very fine roots and common (3.0) medium roots and few (0.5) fine roots and common (3.0) coarse roots; fragments; very strongly acid, pH 4.5, pH meter; abrupt smooth boundary. Lab sample # MU062557

Bt1—25 to 38 centimeters (9.8 to 15.0 inches); strong brown (7.5YR 5/6) silty clay loam; 32 percent clay; moderate medium subangular blocky parts to moderate fine angular blocky, and moderate fine subangular blocky parts to moderate fine angular blocky structure; friable; few (0.1) very fine and fine roots and common (1.0) medium roots and few (0.1) fine roots and common (1.0) coarse roots; 35 percent distinct clay films on faces of peds and in pores; fragments; very strongly acid, pH 4.5, pH meter; abrupt smooth boundary. Lab sample # MU062558. discontinuous - phpvsfiid 139278; discontinuous - phpvsfiid 139278

2Bt2—38 to 56 centimeters (15.0 to 22.0 inches); 75 percent reddish brown (5YR 4/4) and 25 percent brown (7.5YR 5/4) clay; 64 percent clay; moderate fine prismatic parts to moderate fine angular blocky, and moderate medium prismatic parts to moderate fine angular blocky structure; firm; few (0.5) medium roots and few (0.5) fine roots; 60 percent prominent clay films throughout; fragments; very strongly acid, pH 4.9, pH meter; clear smooth boundary. Lab sample # MU062559. continuous - phpvsfiid 139279; continuous - phpvsfiid 139279

2Bt3—56 to 76 centimeters (22.0 to 29.9 inches); 95 percent yellowish brown (10YR 5/6) and 5 percent brown (7.5YR 5/4) silty clay; 49 percent clay; strong medium angular blocky, and strong fine angular blocky structure; firm; few (0.5) medium roots and few (0.5) fine roots; 60 percent prominent clay films throughout; 20 percent light brownish gray (10YR 6/2), moist, clay depletions throughout; 5 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.5, pH meter; gradual smooth boundary. Lab sample # MU062560. continuous - phpvsfiid 139280; continuous - phpvsfiid 139280

3Btx1—76 to 102 centimeters (29.9 to 40.2 inches); 80 percent yellowish brown (10YR 5/6) and 20 percent brown (10YR 5/3) gravelly silty clay loam; 36 percent clay; strong medium angular blocky, and strong fine angular blocky structure; firm; few (0.5) medium roots and few (0.5) fine roots; 60 percent prominent clay films throughout; 30 percent grayish brown (10YR 5/2), moist, clay depletions throughout; 15 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.6, pH meter; abrupt smooth boundary. Lab sample # MU062561. 80% Brittle; continuous - phpvsfiid 136836; continuous - phpvsfiid 136836

3Btx2—102 to 124 centimeters (40.2 to 48.8 inches); brown (7.5YR 5/4) very gravelly clay loam; 30 percent clay; strong coarse prismatic structure; very firm; few (0.1) very fine roots and few (0.1) fine roots; 15 percent distinct clay films on faces of peds and in pores; 30 percent clay depletions throughout; 15 percent by volume nonflat indurated 2-39-75 millimeter sandstone, unspecified fragments and 40 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, pH meter; abrupt smooth boundary. Lab sample # MU062562. 80% Brittle; discontinuous - phpvsfiid 136837; discontinuous - phpvsfiid 136837

4Bt—124 to 183 centimeters (48.8 to 72.0 inches); 75 percent yellowish brown (10YR 5/4) and 25 percent red (2.5YR 4/6) gravelly clay; 68 percent clay; strong coarse prismatic parts to moderate fine angular blocky structure; very firm; few (0.1) medium roots and few (0.1) fine roots; 60 percent prominent grayish brown (10YR 5/2) clay films on faces of peds and in pores; 5 percent by volume nonflat indurated 75-162-250 millimeter limestone, cherty fragments and 15 percent by volume nonflat indurated 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, pH meter. Lab sample # MU062563. continuous - phpvsfiid 136838; continuous - phpvsfiid 136838