IDENTIFIERS

Current Taxon Name (Soil Name): Ralstonflats

OSD

Series Extent

User Site ID: 1979WY629004

User Pedon ID: S1979WY029004

Lab Information:

Certified Lab Pedon Description - no

Print Date: 11/21/2024

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: 44.7400017

Std. Longitude: -109.0194473

Datum: WGS84

Township: 55N

Range: 101W

Section: 16

PLSS Details: 199 meters north and 140 meters west of the southeast corner

Location Description: Park County, WY.

Map Unit: 53A—Ralstonflats-Kamms complex, 0 to 3 percent slopes

State: Wyoming

County: WY029—Park

MLRA: 32—Northern Intermountain Desertic Basins

Regional Office: NW—Northwest

MLRA Soil Survey Area: NW-POW—Powell, Wyoming

Non-MLRA Soil Survey Area: WY629—Park County Area, Wyoming, Eastern Part

7.5 Minute USGS Quad: 44109-F1—Eaglenest Basin, Wyoming

PEDON

Describers Name: Mary Currie and J. R. Stevens

Current Taxonomic Class: Coarse-loamy, mixed, superactive, mesic Ustic Haplocalcids

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: alluvium

Landscape: intermontane basin

Landform: terrace—stream or lake

Geomorphic Component Terraces: tread

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: negligible

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: no

VEGETATION

Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
Ecological Site ID	Ecological Site Name	Correlation Data	Classifier
R032XY350WY	Sandy (Sy) 10-14" East Precipitation Zone

SITE OBSERVATION

Observation Date: 6/1/1979 (actual site observation 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

Site Erosion Accelerated: water erosion

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon free carbonates secondary carbonates calcic horizon	0—13 1—191 13—191 13—191	—13— —191— —178— —178—

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
1	—	—	1563	—	80	309	—	130	7	—	—	—	—	—	—	—	—	—	—

A—0 to 3 centimeters (0.0 to 1.2 inches); brown (10YR 5/3) interior, dark brown (10YR 3/3) interior, moist; sandy loam; weak fine granular, and weak thin platy structure; soft, very friable, slightly sticky, slightly plastic; moderately rapid permeability; 6.0 fine and medium roots throughout; 6.0 fine interstitial pores; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.8, pH indicator solutions; clear smooth boundary.

Bw—3 to 13 centimeters (1.2 to 5.1 inches); brown (10YR 5/3) interior, brown (10YR 4/3) interior, moist; fine sandy loam; weak coarse angular blocky, and weak medium granular structure; slightly hard, friable, slightly sticky, slightly plastic; moderately rapid permeability; 6.0 fine and medium roots throughout; 6.0 very fine tubular pores; fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.8, pH indicator solutions; clear smooth boundary.

Bk1—13 to 23 centimeters (5.1 to 9.1 inches); pale brown (10YR 6/3) interior, brown (10YR 5/3) interior, moist; fine sandy loam; 30 percent dark yellowish brown (10YR 3/4) mottles; weak coarse angular blocky structure; slightly hard, very friable, nonsticky, nonplastic; moderately rapid permeability; 6.0 fine and medium roots throughout; 6.0 very fine tubular pores; 51 percent dark yellowish brown (10YR 3/4) organic stains on all faces of peds; 30 percent very fine threadlike carbonate masses; fragments; strong effervescence, by hcl, 1n; moderately alkaline, pH 8.2, pH indicator solutions; gradual wavy boundary. many very fine and fine lime concretions concentrations; many fine and medium roots; many 10YR 3/4 mottles

Bk2—23 to 53 centimeters (9.1 to 20.9 inches); very pale brown (10YR 7/3) interior, yellowish brown (10YR 5/4) interior, moist; fine sandy loam; 30 percent dark yellowish brown (10YR 3/4) fine mottles; weak fine and medium angular blocky structure; soft, very friable, nonsticky, nonplastic; moderately rapid permeability; 3.0 fine and medium roots throughout; 6.0 very fine tubular pores; 51 percent dark yellowish brown (10YR 3/4) organic stains on all faces of peds; 30 percent fine and medium threadlike carbonate masses; fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 8.6, pH indicator solutions; gradual wavy boundary.

BCk1—53 to 81 centimeters (20.9 to 31.9 inches); very pale brown (10YR 7/3) interior, yellowish brown (10YR 5/4) interior, moist; loamy sand; structureless massive; soft, very friable, nonsticky, nonplastic; moderately rapid permeability; 0.5 fine roots throughout; 6.0 fine interstitial pores; 30 percent medium and coarse threadlike carbonate masses; fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 8.6, pH indicator solutions; gradual wavy boundary.

BCk2—81 to 191 centimeters (31.9 to 75.2 inches); very pale brown (10YR 8/4) interior, yellowish brown (10YR 5/4) interior, moist; loamy sand; structureless massive; loose, loose, nonsticky, nonplastic; rapid permeability; 0.5 fine roots throughout; 6.0 fine interstitial pores; 1 percent carbonate coats on rock fragments; carbonate, finely disseminated and 30 percent medium and coarse threadlike carbonate masses; 5 percent by volume nonflat subrounded indurated 2-39-75 millimeter mixed fragments; violent effervescence, by hcl, 1n; strongly alkaline, pH 8.8, pH indicator solutions. Calcium carbonate disseminated through horizon.