CGR-127
STATE OF ARKANSAS
ARKANSAS GEOLOGICAL SURVEY
Bekki White, State Geologist and Director
COUNTY GEOLOGIC REPORT 127
GEOLOGIC REPORT OF SCOTT COUNTY
by
Daniel S. Rains
and
William D. Hanson
Little Rock, Arkansas
2018
STATE OF ARKANSAS
ARKANSAS GEOLOGICAL SURVEY
Bekki White, State Geologist and Director
COUNTY GEOLOGIC REPORT 127
GEOLOGIC REPORT OF SCOTT COUNTY
by
Daniel S. Rains
and
William D. Hanson
Little Rock, Arkansas
2018
STATE OF ARKANSAS
Asa Hutchinson, Governor
ARKANSAS GEOLOGICAL SURVEY
Bekki White, State Geologist and Director
Commissioners
Dr. Richard R. Cohoon, Chairman…………………………………………..Russellville
Mr. William Willis, Vice Chairman…………………………………………...Hot Springs
Mr. Quin Baber III………………………………………………………………...... Benton
Mr. Bill Cains…………………………………………………………………….Fort Smith
Mr. Ken Fritsche……………………………………………………………….Greenwood
Mr. David Lumbert……………………………………………………………….Maumelle
2018
TABLE OF CONTENTS
Introduction……………………………………………………………………………………….1
Geologic History…………………………………………………………………………………..2
Paleozoic Stratigraphy ……………………………….…………………………………………3
Mineral Resources……………………………………………………………………………....6
Current Mining..………………………………………………………………………….6
Historical Mining..………………………………………………………………………..6
Water Resources…………………………………………………………………………………6
Fossil Fuels……………………………………………………………………………………….7
Geohazards………………………………………………………………………………………8
References……………………………………………………………………………………….9
Glossary………………………………………………………………………………………….10
LIST OF FIGURES
Fig. 1: Location of Scott County…………………... ………………………………………….1
Fig. 2: Stratigraphic column of Scott County.…………………………….……………………2
Fig. 3: Arkansas quartz cluster……………………………………………………..…………..4
Fig. 4: Erratic limestone boulder, Johns Valley Formation, Scott County,
Arkansas.……………………………………….……………………………………………4
Fig. 5: Syringodendron fossil from the McAlester Formation, northern Scott County……5
Fig. 6: Sub-bituminous coal.……………………………………………………………………….8
PLATES – LOCATED AT END OF PUBLICATION
Plate 1: Geologic Map of Scott County, Arkansas
Plate 2: Scott County Mineral Commodities
PREFACE
This report is an accompaniment to the 1:250,000 scale geologic map of Scott County, Arkansas. The 1:250,000 scale geologic map is a mosaic of smaller scale geologic maps, printed at a 1:250,000 scale. Underlined terms are defined in glossary. This publication is available on CD, on paper, and on the Arkansas Geological Survey’s website: www.arkansas.gov/agc/agc.htm
Geologic Report of Scott County, Arkansas
Fig. 1: Location of Scott County. Also shown are the physiographic provinces of Arkansas and sub-provinces of Scott County.
Introduction county (Blue Mountain Dam 7.5 min. USGS
quadrangle). The lowest elevation, Scott County is located in west central approximately 436 ft. (133 m) above sea Arkansas partially in the Ouachita Mountains level, is located at the confluence of Fourche and partially in the Arkansas River Valley La Fave and Oller Creek in west-central Scott (Fig. 1). It has a population estimated at County (Little Texas 7.5 min. USGS 11,233 and an approximate area of 898 mi2 quadrangle). (2,326 km2) (US Census Data, 2010). The
county is situated between latitude Surface water resources in Scott coordinates 35.100o and 34.666o, and County are found in streams and
longitude coordinates −93.705o and −94.454o impoundments. The principal surface
(Plate 1). The highest elevation, 2,360 ft. drainages in the area include the Fourche La
(719 m) above sea level, occurs on Petit Jean Fave, Petit Jean, and Poteau Rivers (Plate 2).
Mountain in the northeast part of the Several lakes are located in Scott County.
1 Some of the larger lakes include Lake Hinkle, Sediments eroding from the North American
Lake Waldron, and Square Rock Lake continent, especially from the recently formed
(Poteau River Site Five Lake). Appalachian Mountains to the east,
accumulated in this ocean basin and Primary access to Scott County is eventually were lithified into layers of bedrock. provided by US Highways 71 and 270. State
Highways 23, 28, and 80 provide access to more rural parts of the county (Plate 2). The
Kansas City and Southern Railroad has a spur that crosses part of Scott County, roughly from west to east, entering the state from Oklahoma and terminating in Waldron,
Arkansas. The Waldron Municipal Airport is
located off of State Highway 71, southwest of
Waldron.
Geologic History
Sedimentary rocks of the Ouachita
Mountains in Scott County are between 360 and 310 million years old (Fig. 2). Around
360 million years ago, the North American Fig. 2: Stratigraphic column of Scott continental margin was in present-day central County
Arkansas. The area we know as southern
Arkansas, including Scott County, was a deep Around 350 million years ago, a ocean basin. Northern Arkansas was also subduction zone formed between the North covered by ocean but it was much shallower. American continent and a landmass to the
2 south. Those landmasses began to converge
and the ocean basin between them started to
narrow. The dense oceanic crust on the leading edge of the North American continent plunged under the lighter rock of the southern continent (Houseknecht and Kacena, 1983).
The heat and pressure generated at the subduction zone caused melting, which Fig. 3: Arkansas quartz cluster
resulted in volcanic eruptions on the southern Since that time, the exposed bedrock has continent. Ash from those volcanic eruptions eroded into valleys and ridges. The valleys is preserved locally in the bedrock of central are typically underlain by erosion-prone rock Arkansas. such as shale, while the ridges are usually
About 320 million years ago, the North erosion-resistant rock like sandstone or
American and southern land masses finally novaculite. This erosion-worn landscape of collided. Collision squeezed the bedrock deformed fractured bedrock is referred to as between them into a series of generally east- the Ouachita Mountains. west-trending folds riddled with thrust faults. Paleozoic Stratigraphy (<360 - 310 The faulting and folding fractured the rock, million years ago) and hot circulating groundwater, related to the (Text adapted from McFarland, 2004). mountain-building process, deposited quartz The Stanley Formation is the youngest in the open fractures (Howard, 2008, Figure rock exposed in Scott County, Arkansas and 3). The deformation also raised the spans part of the Mississippian Period (<360 uppermost rock above sea level exposing it to – 318 million years ago). Its exposure is erosion. limited to the southwestern portion of the
county where its maximum exposed thickness
3 is approximately 100 feet (30 m) (Plate 1). siliceous shale, and chert. The Johns Valley
The Stanley is composed predominantly of locally contains exotic boulders (Fig. 4) which
grayish-black to brownish-gray shale with are thought to have been deposited by mass lesser thin-bedded to massive, fine-grained, wasting. It is exposed in the Fourche
gray to brownish-gray feldspathic sandstone, Mountains in southwestern Scott County.
and chert. After weathering, the sandstone is
generally porous and brown, and the shale is olive-gray.
The Early Pennsylvanian Period (323 to 318 million years ago) Jackfork Formation
(Coleman et al., 1995) conformably overlies
the Stanley Shale. It consists of thin- to
medium-bedded, fine- to coarse-grained, brown, tan, or bluish-gray quartzitic sandstone with lesser amounts of brown silty sandstone and charcoal-colored shale. It’s confined to the Fourche Mountains of southern Scott County (Fig. 1, Plate 1). Fig. 4: Erratic limestone boulder, Johns The Johns Valley Formation rests Valley Formation, Scott County, Arkansas. conformably on the Jackfork Formation. It
was deposited during the Pennsylvanian All other rocks exposed in Scott
Period, 318 to 315 million years ago. It is County were deposited relatively quickly in composed of black shale with numerous the span of 5 million years from 315 to 310 intervals of brownish sandstone. It also million years ago. The oldest of these is the contains small amounts of gray-black Atoka Formation. It was deposited
4 conformably on the Johns Valley Formation. been found throughout the section (Fig. 5).
The Atoka Formation is a sequence of The McAlester Formation is widely exposed
marine, mostly tan to gray silty sandstones across Scott County (Plate 1).
and grayish-black shales. Some rare calcareous beds and siliceous shales have
been noted. It is subdivided into lower,
middle, and upper units. The upper and lower
units tend to be sandier and the middle Atoka is more shale rich (Cohoon et al., 2017). It crops out in southern and central Scott counties in both the Fourche Mountains and Fig. 5: Syringodendron fossil from the McAlester Formation, northern Scott the Arkansas River Valley (Fig. 1, Plate 1). County. Syringodendrons are fossil remains of the trunk of an giant, extinct, There is a minor unconformity tree-like fern.
between the Atoka Formation and the The youngest rock in Scott County is overlying Hartshorne Formation. The the Savanna Formation. It crops out in the Hartshorne is mostly brown to light gray, core of the Poteau Syncline in northern Scott massive, commonly cross-bedded, medium- County (Plate 1). The Savanna Formation is grained sandstone. The Hartshorne mostly dark gray shale and silty shale but Formation crops out in northern Scott County contains minor light gray siltstone and very (Plate 1). fine- to fine-grained sandstone. Some
Conformably overlying the Hartshorne conglomerate intervals are present locally in
Formation is the McAlester Formation. It the sandstone sections. A minimum of six
consists of an extensive shale section coal beds have been identified in the
interbedded with a few coal and sandstone formation. Fossils are rare. The Savanna beds. Plant and invertebrate fossils have
5 Formation conformably overlies the deposit has not been quantified so the value
Hartshorne Formation. of the occurrence is unknown. A quarry was
developed in the boulder at one time but Mineral Resources recent field work was unable to identify the
Current Mining quarry location.
Currently, crushed stone, shale, and Sand and gravel dimension stone are being extracted from Sand and gravel occur as small Scott County. Uses of crushed stone include alluvial deposits throughout Scott County. At aggregate for road construction, riprap, and one time these deposits were extensively railroad ballast. Shale is used as fill material quarried for road construction material. The and top dressing for secondary roads. Strategic Highway Research Program Dimension stone is intermittently quarried (SHRP) conducted in the late 80s and early from at least one location in the county. 90s which aimed to improve US road
Historical Mining construction recommended crushed stone as
Dolomitic limestone a better alternative road building material to gravel (Cominsky et al., 1994). Since then A single bed, 12 – 18 feet (3 – 5.5 m) the sand and gravel of Scott County has been thick, of dolomitic limestone is reported from only used for secondary roads. the Johns Valley Formation in Scott County
(Stroud et al., 1969). The limestone bed is Water Resources apparently a large erratic boulder. Analysis There is one active public water reported in Stroud et al. (1969) indicates a supplier in Scott County. Waldron combined CaCO3 and MgCO3 content of Waterworks provides 2,955 residents with
89.21% which makes it of suitable purity for fresh water. The water is sourced from two
use as agricultural lime. The volume of the nearby impoundments: Square Rock Lake to
6 the north of Waldron, and Lake Waldron to http://geology2.ar.gov/water/WaterWellDownl
the east (Plate 2). The remainder of the oad/TR/SCOTT county’s population relies on groundwater Fossil Fuel wells for both domestic and agricultural needs. There is significant fossil fuel extracted from Scott County, mostly north of The two most productive wells drilled Township 4 North. Natural gas is produced in Scott County both produced 9000 gal/hr from the Atoka Formation and the Hartshorne (34,068 l/min). One is located in Sec 6, T1S, Formation. No successful oil wells have been R27W and is 85 feet deep. The other is in drilled in the county to date. Locations and Sec 6, T4N, R30W and was drilled to 160 foot well information, including production figures, (49 m) depth. 14 wells on file were reported can be accessed on the Arkansas Oil and dry or produced very little water. These non- Gas Commission’s website at: productive wells are located across the
county. The most unproductive wells www.aogc2.state.ar.us/AOGConline/
reported for a single area are in T2N, R28W Coal has been extracted from Scott where there are records of 6 such wells. County historically, but currently there is no
Generally, wells in Scott County are sufficient active mining taking place there. All historic for household needs. The deepest wells coal production was from the Lower drilled are around 500 feet (152 m) deep, and Hartshorne Coal, several hundred feet of there are some wells shallower than 50 feet shale with sandstone and coal interbeds in
(15 m). For site-specific information, contact the base of the McAlester Formation the Arkansas Geological Survey office or (McFarland, 2004; Plate 2). The rank of the access the online water well completion coal in Scott County is sub-bituminous (Fig. reports through our interactive map below: 6).
7 Other types of geohazards affect an
entire region such as active fault zones that
produce earthquakes. There is only one
earthquake recorded in Scott County. It
occurred on June 3rd 1977 and registered a
magnitude 1: a non-destructive earthquake.
Fig. 6: Sub-bituminous coal In the two days that preceded that event, 8
earthquakes, including a magnitude 4, Geohazards occurred in neighboring Polk County to the
Geohazards are geologic conditions south. The faults in Scott County, though that lead to damage or risk to life, health, or numerous, are considered inactive. The property. Some only affect a local area such potential for catastrophic earthquakes in the as slope instability which can lead to area is low. landslides. Areas most prone to landslides There are also more subtle and and slumps in Scott County are areas where insidious geohazards. Expansive soils don’t the slope is steep and there is resistant rock, threaten life but, nevertheless, over a period such as sandstone, underlain by non-resistant of time, can cause property damage with rock, like shale. Many landslides are significant cultural and financial impacts. The triggered in the wet season after a period of American Society of Civil Engineers estimates heavy precipitation that saturates and weighs annual cost of damage from expansive soils down the slope material. Man-made in the US is 2.3 billion dollars (Gromko, 1974). changes to the landscape such as clearing of vegetation and undercutting of slopes, Flash floods occur when a large especially undercutting old landslide deposits, amount of rain falls quickly in an area with can also exacerbate slope instability. relatively narrow valleys, causing stream
levels to rise to or above flood stage for a
8 brief period of time. Though their affect is Both groundwater and surface water
local and short-lived, they can cause a lot of are vulnerable to contaminants ranging from damage because they often occur suddenly industrial sources, such as waste products of and without warning. Certain areas of Scott mining or agricultural runoff, to domestic
County are prone to flooding. In 2013 the sources, such as household chemicals.
Fourche La Fave River valley which parallels Fresh water is a necessity for every person,
State Highway 28 had to be closed as many plant, and animal in the county. Proper low-lying areas along the route between its handling and disposal of waste and other intersection with Highway 71 and the eastern potential contaminants, and good agricultural
County line were underwater (Plate 2). That and industrial practices are significant same year 2 people, including the County defenses to protect the water supply.
Sherriff Cody Carpenter, were killed by
floodwaters during efforts to help affected
residents.
For additional information about mineral commodities of Arkansas visit our interactive mining map at: www.geology.ar.gov/minerals/mining_map.htm. For more information about groundwater in Arkansas refer to: www.geology.ar.gov/water/aquifer.htm
REFERENCES
Coleman, J.L., Van Swearingen, G., Breckon, C.E., 1995, The Jackfork Formation of Arkansas: A test of the Walker-Mutti-Vail models for deep-sea fan deposition, Arkansas Geological Commission, 56 p.
Cohoon, R.R., Patton, J.A., Vere, V.K., 2017, Roadside geology series 02 - Geologic road guide to Arkansas State Highway 10, Arkansas Geological Survey, 50 p.
9 Cominsky, R.J., Huber, G.A., Kennedy, T.W., Anderson, M., 1994, The Superpave mix design manual for new construction and overlay. SHRP-A-407, National Research Council Washington, DC, 172 p.
Gromko, G.J., 1974, Review of expansive soils, Journal of the Geotechnical Engineering Division, Vol. 100, Issue 6, p. 667-687.
Houseknecht, D.W., and Kacena, J.A., 1983, Tectonic and sedimentary evolution of the Arkoma foreland basin, in D.W. Houseknecht, ed., Tectonic sedimentary evolution of the Arkoma Basin and guidebook to deltaic facies, Hartshorne sandstone: SEPM Midcontinent Section, v.1, p. 3 – 52.
Howard, J.M., 2008, Arkansas quartz crystals, Arkansas Geological Survey, Brochure Series 001, 8 p.
Howard, J.M., 2012, Mineral commodity database, Arkansas Geological Commission, in-house data.
McFarland, J.D., 2004, Stratigraphic summary of Arkansas, Arkansas Geological Commission Information Circular 36, 39 p.
Stroud, R.B., Arndt, R.H., Fulkerson, F.B., and Diamond, W.G., 1969, Mineral resources and industries of Arkansas, U.S. Bureau of Mines Bulletin 645, 418 p.
U.S. Census Data, 2010, http://quickfacts.census.gov/qfd/states.html
Glossary of terms
Aggregate – Several hard inert materials, such as sand, gravel, slag or crushed stone, used for mixing with a cementing or bituminous agent to produce construction material.
Ballast – Broken stone, gravel, or similar material used in roadbed or railroad construction without a cementing agent.
Bedrock – the solid rock beneath the soil and loose sediment.
Calcareous – Containing significant calcium carbonate.
Chert – A hard dense sedimentary rock composed primarily of microscopic quartz crystals.
Conformably – Said of strata characterized by an unbroken vertical sequence of layers formed by uninterrupted deposition.
Conglomerate – A sedimentary rock composed of rounded gravel set in a matrix of finer-grained sediment.
Deformation – Change in the geometry of a rock body that occurs due to stress.
10 Exotic – A rock that is unrelated to the rocks with which it is associated.
Feldspathic – said of a rock or mineral aggregate containing feldspar.
Lithified – Transformed into rock.
Mass wasting – A general term for the downslope movement of soil and rock material under the direct influence of gravity.
Massive – Said of a rock that lacks bedding: homogeneous.
Physiographic province – A region of which all parts are similar in geologic structure and climate and which has had a unified geomorphic history; its topographic features differ significantly from those of adjacent regions.
Siliceous – said of a rock that contains abundant silica.
Subduction – In plate tectonics, the edge of one crustal plate descending beneath another.
Riprap – large angular rock fragments placed on a surface to prevent or lessen erosion.
Unconformity – a gap in the geologic record, either representing erosion or non-deposition, that occurs between two successive rock layers in a vertical sequence.
Many of the above definitions are taken in part or paraphrased from “Dictionary of Geological Terms”, t hird edition, American Geological Institute, 1984.
11 Digital County Geologic Map Scott County, Arkansas CGM-AR-127
Geologic Map Of Scott County, Arkansas Savanna Formation (Pennsylvanian) – Dark-gray shale and 94°10'0"W sv Geology by Boyd R. Haley and Charles G. Stone Ù silty shale, with minor light-gray siltstone and gray, very fine- to fine-grained sandstone interbeds and coal beds. Contains
Compiled by Daniel Rains, 2018 7 few plant and invertebrate fossils. Approximately 1,600 ft.
PLATE 1 (488 m.) thick. Å R 23 8 Mcalester Formation (Pennsylvanian) – gray to black shale Å 8 ma Å Ù and tan to gray, thin-beddded sandstone, with a few coal beds. 14 13 Locally contains plant and invertebrate fossils. 500 to 2,300 ft. 94°0'0"W (150 to 700 m.) thick. 8 93°50'0"W
18 Æ Ç ÆÆ Æ R ÆÆR Æ Æ 15 13 Hartshorne Formation (Pennsylvanian) – Brown to gray, Ùhs 14 Å massive, cross-bedded, medium-grained sandstone with some 14 12 14 coal beds in the lower part . 10 to 300 ft. (3 to 91 m.) thick. Å R Å R Æ 35°0'0"N 9 8 Å 8 11 7 3 2 18 35 Atoka Formation upper, middle, lower (Pennsylvanian) – 4 9 au 5 30 40 Ù 3 3 15 Consists of marine tan to gray silty sandstone and grayish black 8 4 5 15 15 16 23 am 24 22 Ù shale. Only split into upper, middle, and lower members in the 20 19 45 94°20'0"W 12 20 37 20 30 Ùal Frontal Ouachita Mountains, and the Arkansas River Valley. 21 45 25 33 35 45 The total thickness of the Atoka Formation is up to 25,000 ft 55 22 27 Å 70 50 28 40 Å 60 (7,600 m). 50 Å 36 30 50 52 Æ 62 Å R 85 20 45 20 24 45 50 56 38 Å R 43 10 55 Johns Valley Formation (Pennsylvanian) - Consists of black 17 70 jv 45 Å 45 47 Ù 35 Ç 44 50 shale with numerous intervals of brownish sandstone . Exceeds 47 20 25 27 18 ÆÆ 65 32 45 45 40 15 25 17 1,500 feet thick in parts of the Ouachita Mountains. 18 30 50 25 Æ19 Æ 58 8 50 Æ Æ Å 25 16 Æ 70 69 45 28 30 40 40 30 65 26 40 60 35 26 10 78 89 40 32 Æ 35 86 80 64 12 8 78 j Jackfork Formation (Pennsylvanian) - Thin to massive- 60 35 89 Ù 2Å9 15 80 10 85 bedded, fine to coarse-grained, brown, tan, or bluish-gray 40 70 32 15 25 60 50 42 47 85 20 16 45 45 40 70 quartzitic sandstone with subordinate brown silty sandstones 70 80 Å 45 30 65 62 60 70 and gray-black shale. 80 55 55 45 30 45 70 50 70 40 50 52 89 75 75 55 82 65 70 65 65 70 70 30 Å 45 45 50 30 Stanley Formation (Mississippian) - Composed predominantly 60 55 30 10 Ms 60 80 85 55 45 65 Å R 80 75 45 10 of grayish-black to brownish-gray shale, with lesser amounts of 70 80 46 55 78 45 Å 45 Å 52 16 70 Å 70 89 thin to massive-bedded, fine-grained, gray to brownish-gray 55 45 35 40 Å 45 20 80 65 85 feldspathic sandstone, dark green to black tuff and black chert. 70 58 60 63 45 65 35 89 15 80 80 65 30 40 34°50'0"N Up to 10,000 feet in parts of the Ouachita Mountains. Å R 55 50 55 25 15 Ä 58 40 Å 60 40 55 85 30 70 70 80 45 85 75 65 Å R 7 38 57 69 70 75 45 78 20 15 10 42 Although this map was compiled from digital data that was 75 55 57 70 80 successfully processed on a computer system using ESRI 80 65 80 80 Å 44 55 30 80 ArcGIS 10.4.1 software at the Arkansas Geological Survey 20 38 20 60 50 46 Å Æ 50 70 60 45 (AGS), no warranty, expressed or implied, is made by the AGS 45 15 Å 70 57 36 22 32 60 50 10 45 80 regarding the unity of the data on any other system, nor shall 35 60 45 45 85 67 45 30 15 65 46 the act of distribution constitute any such warranty. The AGS 60 38 15 60 Å Å 50 25 23 18 Æ 65 38 50 50 45 85 22 does not guarantee this map or digital data to be free of errors 55 32 72 75 80 70 70 or assume liability for interpretations from this map or digital 35 80 45 ÆR 72 60 88 85 data, or decisions based thereon. 70 Å R 89 60 75 80 30 85 58 70 65 40 45 70 52 60 43 80 42 60 The views and conclusions contained in this document are those 25 80 75 60 80 50 70 Æ 45 70 89 43 of the authors and should not be interpreted as necessarily 40 60 45 89 60 88 40 60 45 40 65 40 Å 50 representing the official policies, either expressed or implied, of 50 60 65 89 55 50 45 52 70 the AGS. 72 89 Å R 70 45 80 65 80 75 58 45 55 30 89 60 70 60 60 30 70 89 50 Å 70 70 80 70 70 25 60 26 50 75 34 30 60 60 45 89 65 89 30 30 50 30 LEGEND 60 40 Å R 25 15 50 70 45 40 Ç 65 Ä MINE OR QUARRY, ACTIVE 30 50 PIT, ACTIVE 34°40'0"N Æ MINE OR QUARRY, ABANDONED Å PIT, ABANDONED ÆR MINE OR QUARRY, RECLAIMED Å R PIT, RECLAIMED ÇR QUARRY, STATUS UNKNOWN
CONTACT
TRUST FAULT # # 1:250,000 TEAR FAULT Miles 0 2.5 5 10 Arkansas Geological Survey o ² 45 Kilometers Bekki White, State Geologist STRIKE AND DIP 0 2.5 5 10 Scott County Mineral Commodities Edited by Daniel S. Rains 2018 PLATE 2 R33W R32W R31W R30W R29W R28W R27W R26W
Å Sh ShÅ Ä Sh T5N Å R ¤£71 Å Sh Å MANSFIELD wÇ wÆ 23 Æ Ç C ÆÆÆ w 378 R ÆR Æ Æ Æ C C CSÆ C C C Å Sh Å R Poteau River Å R Æ Sh Å CS Sh T4N ¤£71 Lake Waldron
Å Sh CS Square Rock Lake Å Å SYMBOLS Æ 28 Å RSh COMMODITIES Å R CS WALDRON C Å Sh Ç 248 ÆÆ 28 Sh ÆC Æ 80 Å PIT, ABANDONED C COAL Æ Æ ShÅ Æ CS T3N 80 Æ Ä ShÅ CS PIT, ACTIVE CS CRUSHED STONE 248 £250 Sh ¤ Å 272 Å PIT, INACTIVE w DIMENSION STONE ShÅ ¤£71 Poteau River Å Sh Å R k Sh PIT, RECLAIMED LIMESTONE Å R Sh Sh Å Å Å Sh Fourche La Fave River Å Sh Lake Hinkle Ç QUARRY/MINE, ACTIVE SG SAND AND GRAVEL SG Å R Ä Å Æ QUARRY/MINE, ABANDONED Sh SHALE Sh SG Å R T2N Sh Æ QUARRY/MINE, INACTIVE k Å Sh ÆR Å Æ Å SG 28 QUARRY/MINE, RECLAIMED ¤£71 Sh Æ ShÅ Å CS SG ÆR Disclaimer References Å R SG CS CSÆ Æ Although this map was compiled from digital data that was Howard, J.M., 2012, Mineral T1N successfully processed on a computer system using ESRI commodity database, Arkansas ShÅ CS Sh ¤£270 ArcGIS 10.4.1 software at the Arkansas Geological Survey Geological Survey in-house Å R SGÅ (AGS), no warranty, expressed or implied, is made by the AGS data SÅG ¤£71 regarding the unity of the data on any other system, nor shall the act of distribution constitute any such warranty. The AGS Sh Hanson, W. D. and Rains, D. S., Å R does not guarantee this map or digital data to be free of errors or assume liability for interpretations from this map or digital 2018, Mineral Commodity TOWNSHIP AND RANGE data, or decisions based thereon. database updates, Arkansas T1S Geological Survey in-house data US HIGHWAY ¤£1 The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily ² representing the official policies, either expressed or implied, of STATE HIGHWAY «¬1 the AGS. 1:250,000
County Commodity Map Miles Arkansas Geological Survey 0 2.5 5 10 Scott County Bekki White, State Geologist Kilometers CCM-AR-127 0 2.5 5 10