IDENTIFIERS
Current Taxon Name (Soil Name):
HECKER
OSD
Series Extent
User Site ID:
S1976-CA-06-013x
User Pedon ID:
76-CA-06-013x
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
UCDAVIS
Lab Pedon # -
UCD7606013
NCSS Pedon Lab Data NASIS Record ID -
42328
Print Date:
4/22/2026
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:
39.4227028
Std. Longitude:
-122.7235870
Datum:
WGS84
Township:
18N
Range:
8N
Section:
11
PLSS Details:
SE/4, SE/4
State:
California
County:
CA021—Glenn
MLRA:
5—Siskiyou-Trinity Area
Non-MLRA Soil Survey Area:
CA021—Glenn County, California
7.5 Minute USGS Quad:
39122-D6—Saint John Mountain, California
PEDON
Describers Name:
JIM, RGD, WLC
Current Taxonomic Class:
Loamy-skeletal, mixed, mesic Mollic Haploxeralfs
Pedon Record Orgin:
NASIS
Sampled As Information:
Soil Name -
HECKER
Taxonomic Class -
Loamy-skeletal, mixed, mesic Mollic Haploxeralfs
Classificaton Date -
3/2/2009
Dynamic Soil Properties:
Erosion Class -
1
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
RES
Slope Complexity:
simple
Drainage Class:
well
Bedrock:
greenstone
Geology:
Greenstone formation.
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
3/2/2009 (entry creation date)
Surface Cover Properties:
Site Obs. Cover Kind 1 -
grass/herbaceous cover
Site Obs. Cover Kind 2 -
rangeland, savanna
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
46
—
—
1631
—
135
1143
—
—
8.3
—
—
—
—
—
—
—
—
—
—
O1—0 to 3 centimeters (0.0 to 1.2 inches); fragments; abrupt smooth boundary. Lab sample # UCD01057
A11—3 to 8 centimeters (1.2 to 3.1 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; very gravelly sandy clay loam; moderate fine granular structure; soft, friable; 3.0 very fine roots throughout; 21.0 very fine pores; 35 percent by volume indurated 2-35-75 millimeter unspecified fragments; strongly acid, pH 5.2; clear smooth boundary. Lab sample # UCD01058
A12—8 to 31 centimeters (3.1 to 12.2 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 3/4), moist; extremely gravelly loam; moderate medium granular parts to moderate fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 medium roots throughout and 3.0 fine roots throughout; 21.0 very fine tubular and 21.0 very fine irregular pores; 60 percent by volume indurated 2-35-75 millimeter unspecified fragments; strongly acid, pH 5.4; gradual smooth boundary. Lab sample # UCD01059
B21—31 to 54 centimeters (12.2 to 21.3 inches); brown (10YR 4/3), dark yellowish brown (10YR 3/4), moist; extremely gravelly clay loam; weak fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 medium roots throughout and 3.0 fine roots throughout and 0.5 coarse roots throughout; 21.0 very fine irregular pores; 60 percent by volume indurated 2-35-75 millimeter unspecified fragments; strongly acid, pH 5.3; abrupt wavy boundary. Lab sample # UCD01060
B22t—54 to 69 centimeters (21.3 to 27.2 inches); brown (10YR 5/3), brown (10YR 4/3), moist; extremely gravelly clay loam; moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; 0.5 fine tubular pores; 30 percent clay films on surfaces along pores; 60 percent by volume indurated 2-35-75 millimeter unspecified fragments; moderately acid, pH 5.6; abrupt irregular boundary. Lab sample # UCD01061
R—69 to 69 centimeters (27.2 to 27.2 inches); fragments. Lab sample # UCD01062