Soil Data Explorer - GRAIL

Official Series Description

Lab Data Summary

Aggregate lab data for the GRAIL soil series. This aggregation is based on all pedons with a current taxon name of GRAIL, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to GRAIL were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

Pedons used in the lab summary:

MLRA	Lab ID	Pedon ID	Taxonname	CI	NSSL / NASIS Reports	Link To SoilWeb GMap
54	75ND025002	1975ND025002	Grail	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.3455556,-102.3755556
54	77ND001017	1977ND001017	Grail	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.9627385,-102.405822
54	78ND037012	1978ND037012	Grail	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.1563889,-101.9111111
54	61ND089011	61ND089011	Grail	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.7647222,-103.1772222
54	77ND001016	77ND001016	Grail	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.9747222,-102.0413889

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the GRAIL soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the GRAIL series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-06) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the GRAIL series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the GRAIL series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 3D mountains figure.

Competing Series

Soil series competing with GRAIL share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-06) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the GRAIL series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the GRAIL series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 2D hillslope position figure.

There are insufficient data to create the 3D hills figure.

There are insufficient data to create the 3D mountains figure.

There are insufficient data to create the 3D terrace figure.

There are insufficient data to create the 3D flats position figure.

Soil series sharing subgroup-level classification with GRAIL, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database (updated 2023-10-02).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. ND-2010-09-27-19 | Morton County - 2002

   Typical pattern of soils and underlying materials in the Regent-Daglum-Morton association (Soil Survey of Morton County, North Dakota; 2002).

2. ND-2012-02-08-04 | Grant County - September 1988

   Typical pattern of soils and parent material in the Amor-Regent-Cabba association (Soil Survey of Grant County, North Dakota; September 1988).

3. SD-2012-03-15-07 | Corson County - July 1995

   Pattern of soils and parent material in the Reeder-Cabba association (Soil Survey of Corson County, SD; 1995).

Map Units

Map units containing GRAIL as a major component. Limited to 250 records.

Map Unit Name	Symbol	Map Unit Area (ac)	Map Unit Key	National Map Unit Symbol	Soil Survey Area	Publication Date	Map Scale
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	3351	3155706	d1xh	mt025	1991	1:24000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	300	342203	1vzs8	mt025	1991	1:24000
Grail silty clay loam	Gr	2227	348849	cq06	mt091	1971	1:24000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	3901	345656	1vzs8	mt109	1956	1:31680
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	2956	345631	d1xh	mt109	1956	1:31680
Grail soils, 2 to 15 percent slopes	Gt	6307	345724	clrd	mt111	1966	1:20000
Grail clay loam, 2 to 4 percent slopes	Gr	993	345722	clrb	mt111	1966	1:20000
Grail silty clay, 0 to 1 percent slopes	Gs	233	345723	clrc	mt111	1966	1:20000
Grail clay loam, 15 to 35 percent slopes	GS	9471	2428468	2mj0p	mt607	1970	1:24000
Wayden-Grail complex, hilly	WG	6200	346214	cm86	mt607	1970	1:24000
Grail clay loam, 2 to 8 percent slopes	Go	2061	345965	cm05	mt607	1970	1:24000
Grail clay loam, 8 to 15 percent slopes	Gr	1395	345967	cm07	mt607	1970	1:24000
Grail silty clay, 0 to 2 percent slopes	Gt	919	345968	cm08	mt607	1970	1:24000
Grail clay loam, 0 to 2 percent slopes	Gn	727	345964	cm04	mt607	1970	1:24000
Grail clay loam, 0 to 4 percent slopes	21	11395	348151	cp8p	mt655	1975	1:24000
Grail clay loam, 4 to 8 percent slopes	22	6854	348152	cp8q	mt655	1975	1:24000
Grail silty clay loam, 0 to 4 percent slopes	22	10967	348225	cpc2	mt661	1982	1:24000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	13080	2525725	1vzs4	nd001	1983	1:20000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	991	2525723	1vzs3	nd001	1983	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	115	2525772	2r4h0	nd001	1983	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	54	2755639	1vzs8	nd001	1983	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	3622	2699041	2r4h0	nd007	1998	1:24000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	702	2699046	1vzs8	nd007	1998	1:24000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	5175	2563556	1vzs4	nd011	1969	1:20000
Grail silt loam, 0 to 2 percent slopes	E0812A	4832	2563555	2rdbc	nd011	1969	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	2126	2563605	1vzs8	nd011	1969	1:20000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	1724	2563558	d1xh	nd011	1969	1:20000
Grail-Farland silt loams, 2 to 6 percent slopes	E0814B	941	2563557	2rdbd	nd011	1969	1:20000
Grail-Rhoades silty clay loams, 0 to 2 percent slopes	GoA	815	992834	12b3x	nd011	1969	1:20000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	737	2563529	1vzs3	nd011	1969	1:20000
Grail-Rhoades silty clay loams, 2 to 6 percent slopes	GoB	476	992835	12b3y	nd011	1969	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	152	2758445	2r4h0	nd011	1969	1:20000
Grail silt loam, 2 to 6 percent slopes	GeB	104	992830	12b3s	nd011	1969	1:20000
Grail silty clay loam, 2 to 6 percent slopes	GlB	72	992832	12b3v	nd011	1969	1:20000
Grail silty clay loam, 0 to 2 percent slopes	GlA	43	992831	12b3t	nd011	1969	1:20000
Grail silt loam, 0 to 2 percent slopes	GeA	29	992829	12b3r	nd011	1969	1:20000
Grail soils, saline, 0 to 2 percent slopes	Gm	8	992833	12b3w	nd011	1969	1:20000
Grail silty clay loam, 0 to 2 percent slopes	C471A	10875	2564140	2q4w1	nd015	1967	1:20000
Belfield-Rhoades-Grail complex, 0 to 2 percent slopes	C523A	3921	2564132	2q3b6	nd015	1967	1:20000
Grail silty clay loam, 2 to 6 percent slopes	C471B	1853	2564141	2q4w2	nd015	1967	1:20000
Grail silty clay loam,till, 0 to 2 percent slopes	E0807A	446	2661729	2qz7j	nd015	1967	1:20000
Grail silty clay loam, till, 2 to 6 percent slopes	E0807B	227	2661708	2q38z	nd015	1967	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	156	2661689	1vzs8	nd015	1967	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	11848	2707172	2r4h0	nd025	1981	1:20000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	6481	1713168	1vzs4	nd025	1981	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	5447	2707187	1vzs8	nd025	1981	1:20000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	4514	2707184	d1xh	nd025	1981	1:20000
Grail-Belfield clay loams, 2 to 6 percent slopes	E0623B	94	2758469	d1xg	nd025	1981	1:20000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	2	2707173	1vzs3	nd025	1981	1:20000
Grail silty clay loam,till, 0 to 2 percent slopes	E0807A	2965	2661818	2qz7j	nd029	1979	1:20000
Grail silty clay loam, 0 to 2 percent slopes	C471A	2162	2564321	2q4w1	nd029	1979	1:20000
Grail silty clay loam, 2 to 6 percent slopes	C471B	42	2595814	2q4w2	nd029	1979	1:20000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	6655	2707273	1vzs3	nd033	1985	1:24000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	2157	2707276	1vzs4	nd033	1985	1:24000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	4	2759731	d1xh	nd033	1985	1:24000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	17721	1715485	1vzs4	nd037	1985	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	546	2525841	2r4h0	nd037	1985	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	35037	2525780	2r4h0	nd041	1986	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	15985	2525783	1vzs8	nd041	1986	1:20000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	6388	2525781	1vzs3	nd041	1986	1:20000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	5761	1718582	1vzs4	nd041	1986	1:20000
Grail silt loam, 0 to 2 percent slopes	E0812A	71	2755676	2rdbc	nd041	1986	1:20000
Grail silty clay loam, 0 to 2 percent slopes	C471A	13	2596666	2q4w1	nd043	1985	1:20000
Grail silty clay loam, till, 2 to 6 percent slopes	E0807B	676	2661871	2q38z	nd047	1992	1:20000
Grail silty clay loam, 2 to 6 percent slopes	C471B	291	2595504	2q4w2	nd047	1992	1:20000
Grail silty clay loam, 0 to 2 percent slopes	C471A	94	2595503	2q4w1	nd047	1992	1:20000
Grail silty clay loam,till, 0 to 2 percent slopes	E0807A	84	2661884	2qz7j	nd047	1992	1:20000
Grail silty clay loam, 2 to 6 percent slopes	C471B	952	2595526	2q4w2	nd051	1992	1:24000
Grail silty clay loam, till, 2 to 6 percent slopes	E0807B	196	2662004	2q38z	nd051	1992	1:24000
Grail silty clay loam, 0 to 2 percent slopes	C471A	194	2595525	2q4w1	nd051	1992	1:24000
Grail silty clay loam,till, 0 to 2 percent slopes	E0807A	18	2662017	2qz7j	nd051	1992	1:24000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	15738	2715035	2r4h0	nd053	2003	1:24000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	10216	2715041	1vzs8	nd053	2003	1:24000
Grail silty clay loam, 0 to 2 percent slopes	C471A	5816	2566678	2q4w1	nd055	1974	1:20000
Grail silty clay loam, 2 to 6 percent slopes	C471B	477	2566679	2q4w2	nd055	1974	1:20000
Grail silty clay loam, till, 2 to 6 percent slopes	E0807B	300	2662470	2q38z	nd055	1974	1:20000
Grail-Haplustolls complex, 0 to 3 percent slopes	C1015A	124	2775258	2xfnv	nd055	1974	1:20000
Grail silty clay loam,till, 0 to 2 percent slopes	E0807A	115	2662489	2qz7j	nd055	1974	1:20000
Belfield-Grail complex, 0 to 2 percent slopes	C527A	3	2567155	2q1nt	nd055	1974	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	7598	1715097	2r4h0	nd057	1976	1:20000
Grail-Belfield clay loams, 2 to 6 percent slopes	E0623B	4457	2699265	d1xg	nd057	1976	1:20000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	2740	2699264	1vzs4	nd057	1976	1:20000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	2489	2699266	d1xh	nd057	1976	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	1564	2699312	1vzs8	nd057	1976	1:20000
Grail silt loam, 0 to 2 percent slopes	E0812A	2	2758544	2rdbc	nd057	1976	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	29849	1718329	2r4h0	nd059	1998	1:20000
Grail-Belfield clay loams, 2 to 6 percent slopes	E0623B	20890	2699167	d1xg	nd059	1998	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	5245	2699208	1vzs8	nd059	1998	1:20000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	4821	1718337	1vzs4	nd059	1998	1:20000
Grail silt loam, 0 to 2 percent slopes	E0812A	289	2759663	2rdbc	nd059	1998	1:20000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	8	2759664	d1xh	nd059	1998	1:20000
Grail-Farland silt loams, 2 to 6 percent slopes	E0814B	3	2759665	2rdbd	nd059	1998	1:20000
Belfield-Grail complex, 0 to 2 percent slopes	C527A	1082	2566765	2q1nt	nd061	1988	1:24000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	191	2662513	1vzs8	nd061	1988	1:24000
Grail silt loam, 0 to 2 percent slopes	E0812A	4711	2525909	2rdbc	nd065	1971	1:20000
Grail-Farland silt loams, 2 to 6 percent slopes	E0814B	3103	2525911	2rdbd	nd065	1971	1:20000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	1722	2525910	d1xh	nd065	1971	1:20000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	1561	2525908	1vzs4	nd065	1971	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	463	2525914	1vzs8	nd065	1971	1:20000
Grail-Belfield clay loams, 2 to 6 percent slopes	E0623B	144	2755696	d1xg	nd065	1971	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	14848	2699072	2r4h0	nd085	1992	1:24000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	7001	2699093	d1xh	nd085	1992	1:24000
Grail-Belfield clay loams, 2 to 6 percent slopes	E0623B	3974	2699092	d1xg	nd085	1992	1:24000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	3906	2699126	1vzs8	nd085	1992	1:24000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	2728	2699091	1vzs4	nd085	1992	1:24000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	1044	2699073	1vzs3	nd085	1992	1:24000
Grail-Wyola clay loams, 2 to 6 percent slopes	2313	44	337816	cbj9	nd085	1992	1:24000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	3302	2707377	1vzs4	nd087	1974	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	3187	2707386	1vzs8	nd087	1974	1:20000
Grail silt loam, 0 to 2 percent slopes	E0812A	2703	2707378	2rdbc	nd087	1974	1:20000
Grail-Farland silt loams, 2 to 6 percent slopes	E0814B	895	2707380	2rdbd	nd087	1974	1:20000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	710	2707379	d1xh	nd087	1974	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	453	2707368	2r4h0	nd087	1974	1:20000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	15	2758506	1vzs3	nd087	1974	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	E0605A	13611	2715971	2r4h0	nd089	1965	1:20000
Grail silty clay loam, 0 to 2 percent slopes	E0811A	6603	1713478	1vzs4	nd089	1965	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	3693	2715982	1vzs8	nd089	1965	1:20000
Grail-Wyola silty clay loams, 2 to 6 percent slopes	E0813B	2284	2715981	d1xh	nd089	1965	1:20000
Belfield-Grail-Arnegard complex, saline, 0 to 2 percent slopes	E0609A	1661	2715973	1vzs3	nd089	1965	1:20000
Wyola-Grail silty clay loams, 0 to 2 percent slopes	E0835A	1668	2662559	1vzs8	nd105	1993	1:24000
Wyola-Grail silty clay loams, 0 to 6 percent slopes	2357	802	339068	cctp	nd105	1993	1:24000
Grail silty clay loam, 0 to 2 percent slopes	C471A	288	2661663	2q4w1	nd105	1993	1:24000
Belfield-Grail complex, 0 to 2 percent slopes	C527A	22	2596788	2q1nt	nd105	1993	1:24000
Grail silty clay loam, 0 to 2 percent slopes	C471A	3365	2797888	2q4w1	sd021	1978	1:20000
Grail silty clay loam	2	951	354688	cx2k	sd021	1978	1:20000
Grail silty clay loam, 0 to 2 percent slopes	Gr	14523	356165	1vzs4	sd031	1986	1:24000
Grail-Daglum complex, 0 to 3 percent slopes	GrA	3593	355745	cy5n	sd063	1984	1:24000
Grail silt loam, 0 to 3 percent slopes	GkA	833	355744	cy5m	sd063	1984	1:24000
Grail silty clay loam, 0 to 2 percent slopes	C471A	1272	2798719	2q4w1	sd089	1980	1:20000
Belfield-Grail clay loams, 0 to 2 percent slopes	BcA	15048	354614	2r4h0	sd105	1977	1:24000
Grail silt loam, 0 to 3 percent slopes, rarley flooded	Gr	4092	354631	2zzvv	sd105	1977	1:24000
Grail silt loam, 0 to 3 percent slopes, rarley flooded	Gr	2117	355844	2zzvv	sd137	1985	1:24000
Eapa-Grail complex, 2 to 6 percent slopes	EgB	30729	355436	cxvp	sd601	1983	1:24000
Eapa-Grail complex, 6 to 9 percent slopes	EgC	14776	355437	cxvq	sd601	1983	1:24000
Grail silt loam, 0 to 3 percent slopes, rarley flooded	Gr	2178	3256748	2zzvv	sd601	1983	1:24000

Map of Series Extent

Approximate geographic distribution of the GRAIL soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry (updated 2023-10-04).