IDENTIFIERS

Current Taxon Name (Soil Name): Larkson

OSD

Series Extent

User Site ID: S98WY011-001

User Pedon ID: S98WY011-001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - Lincoln

Lab Pedon # - 98P0402

NCSS Pedon Lab Data NASIS Record ID - 10672

Print Date: 12/11/2024

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: 44.6950729

Std. Longitude: -104.3799157

Datum: WGS84

Township: 54N

Range: 63W

Section: 1

PLSS Details: Southeast quarter

Location Description: 130 ft. W. and 1200 ft. N. of SE corner Sec. 1 T.54N. R.63 W. (section 1 is not a square section.)

Non-MLRA Soil Survey Area: WY011—Crook County, Wyoming

PEDON

Describers Name: C.Prink, W.Schaefer

Current Taxon Kind: series

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Sampled As Information:

Soil Name - Larkson

PSC - 35 to 85 cm.

Classificaton Date - 6/24/1998

Moisture SUBClass - ustic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: sandstone

Landscape: hills

Hill Slope Profile: summit

Runoff: high

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Geology: Minnelusa formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 6/24/1998 (actual site observation date)

Air Photo ID: 70/69

Surface Water Kind: none observed

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

Current Weather - sunny

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon albic horizon glossic horizon argillic horizon	0—17 8—17 17—35 35—105	—- —- —- —-

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
10	—	—	1494	—	50	480	—	—	—	—	—	—	—	—	—	—	—	—	—

; fragments.

Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; nonsticky, nonplastic; fragments; noneffervescent; neutral, pH 7.0, pH meter. Lab sample # 98P2322H; observed in pit, small

A—3 to 8 centimeters (1.2 to 3.1 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; sandy loam; 53 percent sand; 40 percent silt; 7 percent clay; moderate fine granular structure; moderately hard, very friable, nonsticky, nonplastic; 2.0 very fine roots and 2.0 medium roots and 2.0 fine roots; fragments; noneffervescent; neutral, pH 7.1, pH meter; clear smooth boundary. Lab sample # 98P2323S; observed in pit, small

E—8 to 17 centimeters (3.1 to 6.7 inches); dark brown (10YR 3/3), pale brown (10YR 6/3), dry; loam; 45 percent sand; 47 percent silt; 7 percent clay; moderate medium subangular blocky parts to weak thin platy structure; moderately hard, very friable, nonsticky, nonplastic; 2.0 very fine roots and 1.0 medium roots and 2.0 fine roots; 3.0 very fine dendritic tubular pores; 2 percent coarse faint very dark grayish brown (10YR 3/2), moist, worm casts and 2 percent medium faint extremely weakly coherent cemented very dark grayish brown (10YR 3/2), moist, worm casts; fragments; noneffervescent; neutral, pH 7.0, pH meter; clear smooth boundary. Lab sample # 98P2324S; observed in pit, small

E/B—17 to 35 centimeters (6.7 to 13.8 inches); 75 percent brown (10YR 5/3) and 25 percent brown (10YR 4/3), 75 percent very pale brown (10YR 7/3) and 25 percent pale brown (10YR 6/3), dry; loam; 42 percent sand; 49 percent silt; 9 percent clay; weak coarse prismatic parts to moderate medium subangular blocky structure; moderately hard, very friable, slightly sticky, slightly plastic; 2.0 very fine roots and 1.0 medium roots and 4.0 fine roots and 1.0 coarse roots; 8.0 fine dendritic tubular pores; 5 percent distinct very dark grayish brown (10YR 3/2), moist, organoargillans on surfaces along root channels; 1 percent distinct light brown (7.5YR 6/4), moist, iron-manganese masses with sharp boundaries and 2 percent distinct gray (10YR 6/1), moist, iron depletions with clear boundaries on faces of peds; 1 percent fine distinct very dark grayish brown (10YR 3/2), moist, worm casts and 1 percent medium distinct very dark grayish brown (10YR 3/2), moist, worm casts; fragments; noneffervescent; neutral, pH 6.9, pH meter; clear wavy boundary. Lab sample # 98P2325S; observed in pit, small

Bt1—35 to 60 centimeters (13.8 to 23.6 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; clay loam; 30 percent sand; 36 percent silt; 34 percent clay; strong fine angular blocky, and strong medium angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 3 measurements with a Ksat of 0.23 um/s; 1.0 very fine roots and 2.0 medium roots and 2.0 fine roots and 1.0 coarse roots; 12.0 fine dendritic tubular pores; 10 percent prominent light gray (10YR 7/2), moist, skeletans on all faces of peds and 45 percent distinct dark brown (10YR 3/3), moist, clay films on all faces of peds; 2 percent distinct gray (10YR 6/1), moist, iron depletions with clear boundaries on faces of peds; fragments; noneffervescent; neutral, pH 6.7, pH meter; clear wavy boundary. Lab sample # 98P2326S; observed in pit, small

Bt2—60 to 79 centimeters (23.6 to 31.1 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; clay loam; 29 percent sand; 38 percent silt; 33 percent clay; strong medium angular blocky, and strong coarse angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 2.0 medium roots and 2.0 fine roots and 1.0 coarse roots; 6.0 fine dendritic tubular pores; 10 percent prominent light gray (10YR 7/2), moist, skeletans on all faces of peds and 40 percent distinct dark brown (10YR 3/3), moist, clay films on all faces of peds; 5 percent fine prominent black (N 2.5/0), moist, iron-manganese concretions with sharp boundaries; fragments; noneffervescent; moderately acid, pH 5.9, pH meter; gradual wavy boundary. Lab sample # 98P2327S; observed in pit, small

Bt3—79 to 105 centimeters (31.1 to 41.3 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; clay loam; 39 percent sand; 33 percent silt; 28 percent clay; strong medium angular blocky, and strong coarse angular blocky structure; very hard, friable, moderately sticky, moderately plastic; 2 measurements with a Ksat of 0.05 um/s; slow permeability; 1.0 very fine roots and 1.0 medium roots and 1.0 fine roots and 1.0 coarse roots; 8.0 fine dendritic tubular pores; 10 percent prominent light gray (10YR 7/2), moist, skeletans on all faces of peds and 40 percent distinct dark brown (10YR 3/3), moist, clay films on all faces of peds; 2 percent distinct gray (10YR 6/1), moist, iron depletions with clear boundaries on faces of peds and 15 percent fine prominent black (N 2.5/0), moist, iron-manganese concretions with sharp boundaries; fragments; noneffervescent; moderately acid, pH 5.7, pH meter; clear wavy boundary. Lab sample # 98P2328S; observed in pit, small

C soft—105 to 180 centimeters (41.3 to 70.9 inches); yellowish brown (10YR 5/4), light yellowish brown (10YR 6/4), dry; gravelly sand; 93 percent sand; 4 percent silt; 3 percent clay; massive; extremely hard, very weakly coherent, nonsticky, nonplastic; brittle; 15 percent by volume 2-15-75 millimeter sandstone, unspecified fragments; noneffervescent; moderately acid, pH 5.7, pH meter. Lab sample # 98P2329S; observed in pit, small

C hard—105 to 180 centimeters (41.3 to 70.9 inches); yellowish brown (10YR 5/4), light yellowish brown (10YR 6/4), dry; sand; 97 percent sand; 1 percent silt; 2 percent clay; extremely hard, weakly coherent, nonsticky, nonplastic; brittle; fragments; noneffervescent; moderately acid, pH 5.9, pH meter. Lab sample # 98P2330S; observed in pit, small