Soil Data Explorer - GEOHROCK

Official Series Description

Lab Data Summary

Aggregate lab data for the GEOHROCK soil series. This aggregation is based on all pedons with a current taxon name of GEOHROCK, 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 GEOHROCK 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
44	92P0502	91MT049004	Geohrock	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.7299004,-112.1442184

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the GEOHROCK 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 GEOHROCK series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-10-24), parsed OSD records (updated 2024-10-23) and snapshot of SC database (updated 2024-10-23).

Select annual climate data summaries for the GEOHROCK 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 2024-10-23).

Geomorphic description summaries for the GEOHROCK 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 2024-10-23).

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

Competing Series

Soil series competing with GEOHROCK share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2024-10-23) and snapshot of the SC database (updated 2024-10-23).

Select annual climate data summaries for the GEOHROCK 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 2024-10-23).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the GEOHROCK 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 2024-10-23).

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 GEOHROCK, 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 2024-10-23).

Block Diagrams

No block diagrams are available.

Map Units

Map units containing GEOHROCK 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
Geohrock-Bronec-Geohrock, stony complex, 8 to 45 percent slopes	289E	6363	148190	4z6b	mt604	2001	1:24000
Geohrock, bouldery-Sappington, stony-Bronec, bouldery complex, 8 to 35 percent slopes	189E	4384	148225	4z7g	mt604	2001	1:24000
Varney-Delpoint, stony-Geohrock complex, 4 to 35 percent slopes	333E	2067	148266	4z8s	mt604	2001	1:24000
Sappington-Geohrock-Delpoint, stony complex, 4 to 25 percent slopes	278D	1519	148219	4z78	mt604	2001	1:24000
Geohrock very cobbly loam, very stony, 15 to 35 percent slopes	49E	1079	148168	4z5m	mt604	2001	1:24000
Geohrock, stony-Bronec-Geohrock, extremely stony complex, 8 to 45 percent slopes	288E	1010	2450840	2n89c	mt604	2001	1:24000
Faith, rarely flooded-Geohrock, stony-Beavrock, occasionally flooded complex, 2 to 15 percent slopes	9103D	800	148251	4z89	mt604	2001	1:24000
Bronec, bouldery-Geohrock, extremely bouldery-Kalsted, stony complex, 4 to 35 percent slopes	192E	786	2450838	2n899	mt604	2001	1:24000
Varney-Udecide-Geohrock complex, 4 to 15 percent slopes	433D	583	148186	4z66	mt604	2001	1:24000
Geohrock-Bronec gravelly loams, 2 to 8 percent slopes	331C	271	148379	4zdf	mt604	2001	1:24000
Bronec-Kalsted-Geohrock, very stony complex, 4 to 15 percent slopes	628D	35	2450841	2n89d	mt604	2001	1:24000
Faith, rarely flooded-Geohrock, stony-Beavrock, occasionally flooded complex, 2 to 15 percent slopes	9103D	50	1859507	20dz3	mt605	2007	1:24000
Bronec, bouldery-Geohrock, extremely bouldery-Kalsted, stony complex, 4 to 35 percent slopes	192E	28	2403836	2n899	mt605	2007	1:24000
Bronec-Kalsted-Geohrock, very stony complex, 4 to 15 percent slopes	628D	8068	1687590	1tn2d	mt612	2011	1:24000
Geohrock, stony-Bronec-Geohrock, extremely stony complex, 8 to 45 percent slopes	288E	5914	1887015	21blg	mt612	2011	1:24000
Bronec, bouldery-Geohrock, extremely bouldery-Kalsted, stony complex, 8 to 35 percent slopes	192E	4424	1857372	20br7	mt612	2011	1:24000
Geohrock-Bronec complex, 2 to 8 percent slopes	331C	2673	798352	vsr9	mt612	2011	1:24000
Geohrock very cobbly loam, 15 to 35 percent slopes, very stony	49E	1531	798347	vsr4	mt612	2011	1:24000
Varney-Geohrock complex, 4 to 15 percent slopes, stony	433D	914	798353	vsrb	mt612	2011	1:24000
Geohrock, very stony-Dyce-Blackleaf, very stony complex, 2 to 8 percent slopes	330C	427	1895778	21mq4	mt612	2011	1:24000
Geohrock, very stony-Dyce-Blackleaf, very stony complex, 8 to 25 percent slopes	330E	408	1907071	220gf	mt612	2011	1:24000
Varney-Delpoint, stony-Geohrock complex, 4 to 35 percent slopes	333E	71	2597675	4z8s	mt612	2011	1:24000
Geohrock-Bronec gravelly loams, 2 to 8 percent slopes	331C	1815	151039	5257	mt627	1998	1:24000
Sappington-Geohrock complex, 2 to 8 percent slopes	534C	1382	151116	527q	mt627	1998	1:24000
Geohrock cobbly clay loam, 15 to 35 percent slopes, stony	33E	1366	151044	525d	mt627	1998	1:24000
Sappington-Geohrock complex, 8 to 15 percent slopes	534D	1020	151117	527r	mt627	1998	1:24000
Bronec-Geohrock-Rock outcrop complex, 15 to 45 percent slopes	272E	635	150996	523v	mt627	1998	1:24000
Geohrock, stony-Bronec, very stony, complex, 4 to 15 percent slopes	334D	501	151042	525b	mt627	1998	1:24000
Geohrock-Bronec gravelly loams, 8 to 15 percent slopes	331D	456	151040	5258	mt627	1998	1:24000
Geohrock cobbly clay loam, 1 to 4 percent slopes, stony	451A	453	151089	526v	mt627	1998	1:24000
Geohrock-Sappington complex, 4 to 15 percent slopes, stony	332D	273	151041	5259	mt627	1998	1:24000
Geohrock gravelly loam, 2 to 8 percent slopes	3532B	131	151666	52tg	mt627	1998	1:24000
Geohrock-Crago very cobbly loams, 2 to 8 percent slopes	3233C	44	151659	52t7	mt627	1998	1:24000
Geohrock-Tolman channery loams, 4 to 35 percent slopes	163D	9068	147712	4ypx	mt630	1991	1:24000
Geohrock gravelly loam, 2 to 8 percent slopes	532B	8974	147843	4yv4	mt630	1991	1:24000
Geohrock channery loam, cool, 4 to 25 percent slopes	89D	2752	147934	4yy2	mt630	1991	1:24000
Geohrock-Crago very cobbly loams, 2 to 8 percent slopes	233C	2501	147747	4yr1	mt630	1991	1:24000
Nippt-Geohrock gravelly loams, 2 to 4 percent slopes	232B	1246	147746	4yr0	mt630	1991	1:24000
Geohrock family, moist, extremely stony-Gralic family, dry association, 30 to 70 percent slopes	62	6518	512416	k66k	ut646		1:24000
Geohrock-Foreleft complex, 5 to 30 percent slopes	O401		3170929	2z1yx	wy603		1:24000
Bonfri-Foreleft-Geohrock complex, 6 to 35 percent slopes	S401		3170927	2z1yw	wy603		1:24000
Zillman-Geohrock, stony-Amalia-like complex, 6 to 20 percent slopes	9314		3206675	2zc61	wy629		1:24000
Hawksell-Hawksell-like-Geohrock, extremely bouldery complex, 6 to 20 percent slopes	2349		3250465	2zv6p	wy629		1:24000
Birney, stony-Geohrock-Shermap-like, complex 10 to 40 percent slopes	9451		3203065	2zbrw	wy629		1:24000
Evanston-Weed-Geohrock complex, 6 to 30 percent slopes	2412		3136886	2yppp	wy629		1:24000
Kellycreek-Scotty-Geohrock complex, 1 to 25 percent slopes	9311		3170951	2z1zf	wy629		1:24000
Foreleft-Bronec, very stony-Geohrock, stony complex, 20 to 50 percent slopes	9502		3170953	2z1zh	wy629		1:24000
Geohrock, very stony-Swingstation-Bronec complex, 2 to 15 percent slopes	9312		3170954	2z1zj	wy629		1:24000
Geohrock, very stony-Foreleft-Zillman complex, 4 to 30 percent slopes	9441		3170995	2z20v	wy629		1:24000
Coyoteflats, stony-Geohrock-Pachel complex, 4 to 40 percent slopes	9450		3203058	2zbrn	wy629		1:24000
Geohrock, very stony-Bronec-Foreleft complex, 6 to 55 percent slopes	5804		3206671	2zc5x	wy629		1:24000
Mantlemine-Geohrock complex, 4 to 20 percent slopes	9313		3206673	2zc5z	wy629		1:24000
Notter-Geohrock complex, 1 to 10 percent slopes	858		3365730	312fr	wy630		1:24000
Seminoe-Geohrock complex, 2 to 12 percent slopes	706		3003838	2x7bd	wy630		1:24000
Rock outcrop-Geohrock-Qcreek complex, 3 to 25 percent slopes	880		3410434	31g78	wy630		1:24000
Geohrock very gravelly sandy loam, 10 to 35 percent slopes	856		3365728	312ft	wy630		1:24000
Geohrock gravelly sandy loam, 1 to 4 percent slopes	2211	2460	1672250	1t43k	wy635		1:24000
Foreleft-Bronec, very stony-Geohrock, stony complex, 20 to 50 percent slopes	9502		3250539	2z1zh	wy656	2008	1:24000
Twinadams-Geohrock families, complex, 10 to 30 percent slopes	404	5579	157882	598z	wy656	2008	1:24000
Cusheet-Brickner-Geohrock family, complex, 15 to 45 percent slopes, rubbly surface	4318		3406447	31fxh	wy737		1:24000

Map of Series Extent

Approximate geographic distribution of the GEOHROCK 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 2024-10-30).