Pound Gap Route 23 Kentucky, Devonian through Pennsylvanian rocks exposed on highway

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Pound Gap road cut exposing Devonian through Pennsylvanian in the Pine Mountain Thrust on US 23 above & east of Jenkins, Kentucky.

This extraordinary outcrop of Paleozoic sediments extends from its base up through the Devonian Ohio Shale, Bedford Shale, Beria Sandstone and Sunbury Shale; Mississippian Grainger Formation, and Newman Limestone; the transitional Mississippian through Lower Pennsylvanian Pennington Formation; the Lower Pennsylvanian Lee Formation of the Lower and Middle Pennsylvanian Breathitt Group. It is located at Pound Gap at the crest of the Pine Mountain Thrust on US 23 at the state borders of Virginia and Kentucky just to the south of the town on Jenkins Kentucky.

The sources of maps, diagrams and photographic images have been referenced on that particular illustration. The Kentucky Geological Survey is a source of most of the measured sections for Route 23, while many of the maps and diagrams tracking continental paleogeography were created by Dr. Ron Blakey of Northern Arizona University at Flagstaff, Arizona; while the paleogeographic maps and cross sections for the late Paleozoic of the Appalachians were created by Dr. Lynn S. Fichter of the Department of Geology/Environmental Science of James Madison University in Harrisonburg, Virginia. Most of the photographs are by Christopher Kendall using a digital Nicon Coolpix camera and a number were taken by Dave Barbeau.

Click on image to the right for access to measured geological sections by Nelson, Chestnut and Harris 1998 for Pound Gap copied from their field guide from the Kentucky Survey

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001 Appalachian Basin.	002 Early Devonian Appalachians.	003 Catskills.	004 Catskills.	005 Catskills.

006 Taconic Orogeny.	007 Alleghenian Orogeny.	008 Silurian Devonian X section.	009 Events 400Ma.	010 Acadian.

011 Upper Miss.	012 Late Miss App.	013 Mississippian Orogenic Calm.	014 Upper Penn Appalachians.	015 Alleghenian

016 Geological x section Virginia.	017 Early Permian Appalachians.	018 Regional Appalachian Folds Pound Gap.	019 Pine Mt Thrust & Pound Gap.	020 Pine Mt Thrust & Pound Gap.

021 Pine Mt Thrust & Pound Gap.	022 Jenkins & Pound Gap.	023 Jenkins To Pikeville.	024 Geol Section Pound Gap.	025 Geology Section North of Pine Mt Thrust.

026 Appalachian Stratigraphy.	027 Mid Slope Channels.	028 Toe Slope.	029 Proximal Fan.	030 Mid Fan.

031 Distal Fan.	032 Gulf of Carpentaria Nasa.	033 Carpentaria False Color Mr Sid Nasa.	034 Pennsylvanian Barrier Island Model.	035 Barrier & Carbonate Shelf.

036 Carbonate Shelf Barrier Delta.	037 Delta & Channeled Mouth Bar.	038 Delta Model.	039 Fluvial Point Bar.

040 Evolving Xsection	041 Pound Gap Paleozoic Section	042 Grainger & Ohio Shales	043 Pound Gap Up Newman	044 Upper Newman Section

045 Little Stone Mt Grp	046 Stony Gap	047 Pennington Soils	048 Pennington Tidal Flat S	049 Esturine Upper Pennigto

050 Penn Miss Boundary Lee	051 Pennsylvanian Lee Secti	052 Penn Lee At Top	053 Stony Gap

054 Newman Pound Gap	055 Newman Pound Gap	056 Newman Pound Gap	057 Field stop Newman Pound Gap	058 Field stop Newman Pound Gap

059 Field stop Newman Pound Gap	060 Field stop Newman Pound Gap	061 Field stop Newman Pound Gap

066 Pound Gap	067 Pound Gap	068 Pound Gap	069 Pound Gap	070 Pound Gap

071 Pound Gap	072 Pound Gap	073 Pound Gap	074 Pound Gap	075 Pound Gap

076 Pound Gap	077 Pound Gap	078 Pound Gap	079 Pound Gap	080 Pound Gap

081 Pound Gap	082 Pound Gap	083 Pound Gap	084 Pound Gap	085 Pound Gap

086 Pound Gap	087 Pound Gap	088 Pound Gap	089 Pound Gap	090 Pound Gap

091 Pound Gap	092 Pound Gap	093 Pound Gap	094 Pound Gap	095 Pound Gap

096 Pound Gap	097 Pound Gap	098 Pound Gap	099 Pound Gap	100 Pound Gap

101 Pound Gap	102 Pound Gap	103 Pound Gap	104 Pound Gap	105 Pound Gap

106 Pound Gap	107 Pound Gap	108 Pound Gap	109 Pound Gap	110 Pound Gap

111 Pound Gap	112 Pound Gap	113 Pound Gap	114 Pound Gap	115 Pound Gap

116 Pound Gap	117 Pound Gap	118 Pound Gap	119 Pound Gap	120 Pound Gap

121 Pound Gap	122 Pound Gap	123 Newman Limestone Mississippian	124 Newman Limestone Mississippian	125 Newman Limestone Mississippian

126 Newman Limestone Mississippian	127 Newman Limestone Mississippian	128 Newman Limestone Mississippian	129 Newman Limestone Mississippian	130 Newman Limestone Mississippian

131 Newman Limestone Mississippian	132 Newman Limestone Mississippian	133 Newman Limestone Mississippian	134 Newman Limestone Mississippian	135 Newman Limestone Mississippian

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Last Revised: April 20, 2006