IDENTIFIERS

Current Taxon Name (Soil Name): Monongahela

OSD

Series Extent

User Site ID: S2017VA043005

User Pedon ID: S2017VA043005

Vegetation Plot ID: S2017VA043005

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - KSSL

Lab Pedon # - 17N0782

User Project ID: BLAN_002_NEON

Project Name: Blandy Experimental Farm

Print Date: 4/11/2026

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: 39.0873056

Std. Longitude: -77.9718611

Datum: WGS84

Location Description: 8.07;289;40x40 SE marker

Map Unit: 26C—Monongahela-Braddock complex, 8 to 15 percent slopes

State: Virginia

County: VA043—Clarke

MLRA: 147—Northern Appalachian Ridges and Valleys

MLRA Soil Survey Area: NE-MIL—Mill Hall, Pennsylvania

Non-MLRA Soil Survey Area: VA043—Clarke County, Virginia

PEDON

Describers Name: Mike McDevitt

Current Taxonomic Class: Fine-loamy, mixed, semiactive, mesic Typic Fragiudults

Current Taxon Kind: series

Pedon Type: not classified to current taxon name

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Sampled As Information:

Soil Name - Monongahela

Taxonomic Class - Fine-loamy, mixed, semiactive, mesic Typic Fragiudults

Taxon Kind - series

Classificaton Date - 6/12/2017

Classifier - Mike McDevitt

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Pedon Vegetation and Crop Cover Information:

Forest Overstory Veg. Type - tree

Hydric: no

SITE

Parent Material: alluvium derived from sandstone

Landscape: valley

Landform: terrace

Geomorphic Component Hills: side slope

Hill Slope Profile: footslope

Slope Position: lower third

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: convex

Drainage Class: somewhat poorly

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: yes

RaCA Information:

RaCA Site ID - BLAN_005

DSP Plot ID - SE

Plot Baseline Azimuth - 289

Plot Baseline Length - 8

Plot Width - 40

Plot/Site Set Up By - Center of Pit

Plot or Site Recorder - Mike McDevitt

VEGETATION

Vegplot Text Note(s): NASIS Site Name (MLRA06_Morgantown) was transferred over (MLRA12_Amherst) to align with the new USDA-NRCS SPSD Regional Office boundaries. The MLRA12-Amherst NASIS Site will eventually be renamed as the Northeast NASIS Site.

SITE OBSERVATION

Observation Date: 6/12/2017 (actual site observation date)

Data Collector: Seitz, McDevitt, Jones

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - intermixed conifers and hardwoods

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
ACRU LITU MIVI PRSE2	Acer rubrum Liriodendron tulipifera Microstegium vimineum Prunus serotina	red maple tuliptree Nepalese browntop black cherry	— — — —	— — — —	— — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
fragipan	—	39 - 100	- 61 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon fragipan	0—26 26—100 39—100	—26— —74— —61—

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	—	—	150.9	—	28	—	—	—	—	—	—	—	—	—	—	—	—	—	—

A—0 to 8 centimeters (0.0 to 3.1 inches); very dark grayish brown (10YR 3/2) silt loam; 12 percent clay; weak medium subangular blocky structure; very friable, nonsticky, nonplastic; many very fine roots and few medium roots; fragments; clear irregular boundary. Lab sample # 17N03911; observed in pit, small

AB—8 to 26 centimeters (3.1 to 10.2 inches); dark grayish brown (10YR 4/2) silt loam; 12 percent clay; weak medium subangular blocky structure; very friable, nonsticky, nonplastic; common very fine roots and few medium roots; 5 percent by volume unspecified fragments; clear wavy boundary. Lab sample # 17N03912; observed in pit, small

Bt—26 to 39 centimeters (10.2 to 15.4 inches); 85 percent yellowish brown (10YR 5/6) and 10 percent pale brown (10YR 6/3) and 5 percent yellowish red (5YR 4/6) silt loam; 22 percent clay; moderate very coarse subangular blocky structure; friable, slightly sticky, slightly plastic; common very fine roots; 5 percent distinct clay films on all faces of peds; 5 percent by volume unspecified fragments; gradual wavy boundary. Lab sample # 17N03913; observed in pit, small

2Btx1—39 to 62 centimeters (15.4 to 24.4 inches); variegated 45 percent yellowish brown (10YR 5/6) and 45 percent pale brown (10YR 6/3) and 5 percent light brownish gray (10YR 6/2) and 3 percent yellowish red (5YR 4/6) and 2 percent black (10YR 2/1) silty clay loam; 29 percent clay; moderate coarse prismatic, and moderate medium platy structure; firm, slightly sticky, nonplastic; common very fine roots; 15 percent distinct clay films on all faces of peds; 5 percent by volume unspecified fragments; gradual wavy boundary. Lab sample # 17N03914; observed in pit, small

2Btx2—62 to 100 centimeters (24.4 to 39.4 inches); variegated 45 percent yellowish brown (10YR 5/6) and 45 percent pale brown (10YR 6/3) and 5 percent light brownish gray (10YR 6/2) and 3 percent yellowish red (5YR 4/6) and 2 percent black (10YR 2/1) silty clay loam; 29 percent clay; weak very coarse prismatic, and moderate medium platy structure; firm, slightly sticky, nonplastic; 20 percent distinct clay films on all faces of peds; 5 percent by volume unspecified fragments. Lab sample # 17N03915; observed in pit, small