Plate 1 UTAH GEOLOGICAL SURVEY Utah Geological Survey Miscellaneous Publication 09-2DM a division of Geologic Map of part of the Lees Ferry Area, Utah Department of Natural Resources digitized from U.S. Geological Survey Bulletin 1137 (1963) in cooperation with the National Park Service 111°37'30'' 36°57'49'' References to Selected Geologic Maps Covering Glen Canyon National Recreation Area (numbers refer to index map) 1 Billingsley, G.H., Huntoon, P.W., and Breed, W.J., 1987, Geologic map of Capitol Reef National Park and vicinity, Emery, Garfield, Kane, and Wayne Counties, Utah: Utah Geological and Mineral Survey Map 87, scale 1:62,500. Geographic Information System (GIS) data - http://science.nature.nps.gov/nrdata/datastore.cfm?ID=39074; Map Explanation digital map image - http://geology.utah.gov/maps/geomap/parkmaps/pdf/M-87.pdf. Geologic Lines Geologic Units Qea 2 Doelling, H.H. and Willis, G.C., 2006, Geologic map of the Smoky Mountain 30’x60’ quadrangle, Kane and San Juan Counties, Utah, and Coconino County, Arizona: Utah Geological Survey contact, approximately located Colorado River Map 213, 2 plates, scale 1:100,000; GIS data - UGS Map 213DM published in 2008. Also see: Doelling, H.H., and Davis, F.D., 1989, The geology of Kane County, Utah, geology, mineral resources, ! ! ! ! ! geologic hazards: Utah Geological and Mineral Survey Bulletin 124 [also published separately as UGMS Map 121], 10 pl., scale 1:100,000, 192 p. ! ! ! contact, concealed Qes ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ? ! ! 3 Doelling, H.H., and Willis, G.C., 1999, Interim geologic map of the Escalante and parts of the Loa and Hite Crossing 30'x60' quadrangles, Garfield and Kane Counties, Utah: Utah Geological ! ! contact, well located Qal1 ? ! 7 ? ! ! ! ! ! Survey Open-File Report 368, 19 p., 2 plates, scale 1:100,000. ! ! ! ! ! ! ! ! ! ! ! Jp! fault, normal, approximately located Qea ! ? ! ! ! ! ! Qea! 4 Doelling, H.H., and Willis, G.C., 2008, Geologic map of the lower Escalante River area, Glen Canyon National Recreation Area, Eastern Kane County, Utah: Utah Geological Survey ! Miscellaneous Publication 06-3DM, 8 p., scale 1:100,000. Jp fault, normal, approximately located, queried Qmt ! ! ! ! ! ! ! ! !!!!!!!!!!!!!!! ! ! ! 5 Huntoon, P.W., Billingsley, G.H., Jr., and Breed, W.J., 1982, Geologic map of Canyonlands National Park and vicinity, Utah: Moab, Utah, Canyonlands Natural History Association, scale ! fault, normal, concealed Qms Jp 1:62,500. GIS data - http://science.nature.nps.gov/nrdata/datastore.cfm?ID=38974. Also see: Doelling, H.H., 2004, Geologic map of the La Sal 30'x60' quadrangle, San Juan County, Utah: Utah 6 ! ! ! Geological Survey Map 205, 2 plates, scale 1:100,000; GIS data - UGS Map 205DM published in 2006. ! fault, normal, well located Qaeo 80 *** fault, reverse, well located Qat 6 This map. 15 10 Jp 10 ! 10 ! ! fault, unknown, approximately located Jc 90 ! ! ! ! 7 Thaden, R.E., Trites, A.F., Jr., Finnell, T.L., and Willis, G.C., 2008, Geologic map of the White Canyon-Good Hope Bay area, San Juan and Garfield Counties, Utah (digitized and modified from ! ! ! ! ! ! ! 20 ! ! U.S. Geological Survey Bulletin 1125, published in 1964): Utah Geological Survey Miscellaneous Publication 08-3DM, GIS data, scale 1:100,000. ! ! ! ! ! ! fault, unknown, approximately located, queried Jcj ! ! ! ! ! ! ! ! ! 4 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!!!!!!!!!!!!!! ! ! ! ! ! 8 Willis, G.C., 2004, Interim geologic map of the lower San Juan River area, eastern Glen Canyon National Recreation Area and vicinity, San Juan County, Utah: Utah Geological Survey Open-File ! ! ! ! ! fault, unknown, concealed b ! ! ! ! ! ! ? ! ! ! ! ! ! ! ! ! ! ! ! Report 443DM, GIS data, scale 1:50,000. ? ! ! ! ! ! ! ! ! ! ! ! ! !!!!!!!!!!!!!!! ! R 7 E R 8 E ! ! ! ! fault, unknown, concealed, queried Jp ! ! ! ! ! ! ! 9 Willis, G.C., 2009, Geolgic map of the Hite Crossing – lower Dirty Devil River area, Glen Canyon National Recreation Area, San Juan and Garfield Counties, Utah: Utah Geological Survey Map, ! ! Qea ! ! ! ! ! ! ! ! ! ! ! ! ! GIS data, scale 1:100,000. ! fault, unknown, well located Jn ! ! ! ! ! Qea ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 10 ! joint, approximately located Jk 10 Willis, G.C., 2009, Interim geologic map of the Glen Canyon Dam area, Glen Canyon National Recreation Area, Kane and San Juan Counties, Utah and Coconino County, Arizona: Utah ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! Geological Survey Map, GIS data, scale 1:50,000. ! ? !! ! ! ! ! ! ! ! ! ! ! joint, well located Jks ! ! Jcj ! ! ! ! ! ! ! 11 Willis, G.C., 2009, Interim geologic maps of the Bullfrog, Halls Crossing, Halls Crossing NE, Ticaboo Mesa, and Knowles Canyon quadrangles, Glen Canyon National Recreation Area, Garfield ! ! 70 map boundary, well located JTRmd and San Juan Counties, Utah: Utah Geological Survey Open-File Reports, GIS data, scale 1:24,000. 13 ? ! ? ! ! !!! ! vein, mineralized, approximately located TRcop ! ! ! 15 ! ! ? !!! ! 100 111°30'00'' ! ! vein, mineralized, well located TRcmn ? ! ! ! _ ! 36°53'45'' ! ! ! ! ! ! 60 38°30' ! ! ! water boundary TRcs ! ? 85 ? ! ! ! ! ? ! 5 80 Edge of Triassic Paleochannel TRmu ! ! ! ! Glen ? ! 11 TRcop ! anticline, upright, asymmetrical, approximately located TRml 1 Qes JTRmd ? ! Loa ! ! Hanksville ! TRcop ! ? ! ! !!!!!!!!!!! ? ! 60 anticline, upright, asymmetrical, concealed Pk ! ! ! ! 40 La Sal Jks ? ! ! ! ! ! ! Qes anticline, upright, asymmetrical, well located Pt TRcop ! ! 38° ? ! ? ! ! JTRmd ? ? ? ! TRcop ! ? Hite Crossing 9 Canyon ! anticline, upright, well located Pco ! ! ? ! ! ! ! ! ! ! Jn ! ! ! ! ! ! 1 ! National ! ? ! ! monocline, antiformal bend, approximately located Phe 3 Jks ! ! ! ! ! ! ! ! ! Qea ! ! ! ? ! ! TRcmn ! ! TRcmn Qes ! ! ! ! ! ! Qms ! Blanding ! monocline, antiformal bend, well located ! ! ! ! Escalante ! ! ? ! Jk ? 7 ! ! 15 syncline, upright, approximately located ! ! Recreation ! ? ! 37°30' ! 10 ! 11 ! ! Qms ! syncline, upright, well located Qmt ! 4 ? ! ! Navajo Mountain ! ! ! ! Qmt ! structural contour, base of Navajo Sandstone ? Qea ! 8 TRcmn ! JTRmd ! Smoky Mountain ! ! ! ! ! 4 ! ! TRcmn ! !! Qes ! ! Bluff ! ! ! structural contour, projected, base of Navajo Sandstone ! ! JTRmd ! 2 4 ? ! 11 ! ! ! ! ! ! TRcop ! ! Area ! Qmt ! TRcmn ! TRcop TRcop ! Cross-Section Lines ! JTRmd 90 ? ! UTAH T 41 N ! T 41 N 37° T 40 N ! T 40 N 75 ? Glen Canyon NRA Boundary ! 4200 ! TRcmn ! ! ARIZONA ! Jk Qes TRcmn ! TRcs ! 10 ! ! ! TRcmn Jks ! ! 3000 Qmt TRcop ! Qms ! TRcs ! ! 6 6 TRcs JTRmd ! ! ! Rock Qmt TRcmn 3200 Kayenta ? ! JTRmd ! Glen Canyon Dam Point TRcop ! Jc ! ! ! ! 3400 ! ! ! ! ! ! ! TRcmn ! ! ! ! 3600 ! ! Jks ! ! Qms ! 2 ! ! ! 111° 110° 3800 ! ! ! ! ! ! ! ! ! ? ! ! ! ! ! 111°30'00'' ! ! ! TRcmn 5 ! ! ! ! 7 ! ! 36°53'45'' JTRmd ! ! ! ! TRcs 4000 90 ! ! TRcmn ! ! Qea JTRmd TRcmn ! ! Jc Qal1 ! ! ! ! B'' ! ! 4200 ! Jp TRcmn 80 JTRmd ? Jn 4400 TRcop Qmt 12 85 JTRmd Jk Qal1 4600 15 20 TRcmn 8 4800 ? 5 16 75 Qea 85 Qea Qms TRcop 90 2600 ! ! Qea ! JTRmd 5 TRcmn ! ? JTRmd TRcop ! Jn TRcop TRcmn 5 70 ! 65 Qea Qal1 JTRmd B TRcop ! ! R 6 E R 7 E Qea TRcs 85 ! ! 2 Jcj ? ! ! ? ! 80 85 ! Jn 2 5000 70 ! ! ! Qat ! ! Jks Qal1 ! ! ! b ! ! ? ! ! 2 ? ! ! b ! ! ! ! Jn ! Jcj Qms ! ! ! 80 TRcs ! TRcop ! TRcmn ! ! Qea ! ! TRcmn Qms ! TRcop ? ! Qal1 TRml ! Jn 2 Qat JTRmd TRcop TRcmn TRmu Qat Qal1 111°42'30'' Jn Jn 6 Qmt Qms 36°52'30'' _ _ 36°52'30'' 2 Qal1 TRcmn TRcmn Qal1 TRcop TRcs Qat TRcmn 80 TRmu Qat Jk Qat Qea Qea TRcmn TRcop 10 TRcop b 5 2 2 2 GLEN CANYON TRcmn Jcj Jn TRcop Jn TRcop Qes Qms TRcop TRcmn TRmu Jn TRcmn TRmu Qat 2800 TRcmn TRcop Qea TRcmn 5 JTRmd 8 Jn TRcop TRcop ! TRcop Qms Jks ! Qat Qat JTRmd ! 10 Qat TRmu Qat ! Jcj TRcsTRmu ! Colorado River ! TRcmn TRcs ! Qat Qms JTRmd Qes TRcop TRcop 16 Jn 2 Qmt Qms Jn TRcop Jn Qal1 Qat Jks Jn Qms TRcmn 5200 TRcs Jn 4 TRcmn NATIONAL TRml TRcop 4 TRmu TRcs Qmt JTRmd Qat TRcmn TRcop TRmu TRcs TRcop TRmuTRml Qat Jn Qmt TRcmn TRcs Jn Qms TRcop Qms 14 Jn Qes TRmu JTRmd TRcop TRcmn Jn 3000 Qal1 TRcop TRcmn JTRmd TRcs JTRmd Jks TRcop Qmt TRcop TRcop Qat JTRmd 17 Jcj Qal1 50 TRcop Qat TRcop Qat Qmt Qal1 Jn JTRmd 3 RECREATION Qat TRcop Qat Qms Qes TRcop 80 Qmt TRcmn Qat TRcop TRcop 2 TRmu Jk Jks Qat TRmu JTRmd TRcmn TRcmn TRcs Qmt Jks Qmt Qal1 20 JTRmd Qat TRmu C'' Qmt TRcop Qal1 ! ! ! Qes Jn ! ! ! TRcs ! ! TRmu ! ! TRcop ! Qms ! ! TRml Qal1 ! TRcs ! ? JTRmd Qaeo ! ! 2 ! TRcop ! ! Qms TRmu ! TRcop ! JTRmd ! ! Jks ! ! ! Qmt ! ! ! JTRmd ! ! Qms ! TRmu 4 ! ! Jk ! ! ! ! ! TRcop ! ! JTRmd TRcop ! Qal1 ! ! ! ! 25 ! 5400 ! AREA ! TRcop ! TRcmn 45 ! ! TRmu 20 ! ! ! Qmt ! TRcs ! ! ! ! ! ! ! ! Qal1 ! ! JTRmd ! Qaeo ! TRmu ! ! Jk ! Qat ! Qmt ! 3200 ! ! ! ! TRml ! ! ! ! ! ! ! Jn ! ! Jn ! Qes Qmt ! ! ! Qes ! ! TRcs ! ! ! ! ! ! ! ! Qaeo ! ! 30 ! Jn ! TRcop Qmt ! Qms Jks TRcop TRcmn ! Qal1 ! Jk TRcop Qaeo ! 85 ! ! Qaeo ! Qmt 2 ! ! 5 TRml 30 ! b 5 ! Qms ! Jks ! TRcop 88 6 ? TRcsTRcmn TRmu TRmu TRcs TRcop TRmu 10 b D Qat Jn 17 ! ? TRml ! 2 Jks 60 Jk ! 1-2 2 Jks ! Jks Qms Jk ! TRcmn ? Qea 80 JTRmd JTRmd Jks Jk Jks TRcop Pt TRml Jks TRcop JTRmd TRcmn Qat 20 JTRmd TRml Qat JTRmd Jks Jk JTRmd Pt 7 ? Jks TRcop 2 ! Qmt TRcmn JTRmd D' ! JTRmd ! TRml ! JTRmd Qat 15 TRcop TRcs ! TRcop Jk ! b Jks Jk ! Qat ! ! JTRmd ! Jk 15 ? TRml25 ! 35 Jk Jks Jks Jks Qms ! JTRmd TRcop 3 3400 TRml TRcmn ! Pk ! TRcop TRcs Qmt JTRmd ! TRcs 30 ! TRcs ! Jks JTRmd Qat ! TRcop TRml TRmu ? Jks ! T 40 N Jks Qmt ! Jks TRcs Qms T 39 N 2 Jk TRmu Qat Jk ? TRml Jks Jks 5600 Jks TRcs Pco Pco b TRcs TRml 28 Qms Qms 3 TRcmn TRml ? C' 25 TRmu JTRmdJks TRcs E TRmu Qaeo Qms 2 TRcmn 16 ? TRcop Qaeo TRcopTRcop TRcmn b TRcs TRcs TRcop TRcmn TRcmn TRcmn Qms TRmu TRcs 12 3600 TRmu Pk TRcs TRmu Qaeo Qms TRcs TRml Phe 17 TRmu b TRcmn Pt Qat 4 12 JTRmd 2 11 4 TRcmn TRcs TRmu Pco 18 TRcop TRcs Qal1 TRcmn Qal1 Qms TRcopTRcmn TRcs TRcs Qms TRcop TRmu JTRmd Jk Jn 2 Qal1 Pco TRcs TRmu Qmt TRmu ! ! TRmu Qaeo ! 3800 ! Qms ! TRcop ! 5800 TRcop ! ! ! ! TRcs Jks ! ! Pt ! Phe Qms ! TRcop ! ! JTRmd Qms ! ! ! ! TRcop 4000 * ! TRmu ! TRcs ! * ! 31 ! ! b ! ! ! ! ! TRcop Qaeo ! TRcmn * ! ! * ! __ ! 62 ! ! TRmu ! ! Pco 6 ! ! Qaeo b 4 36°47'30'' b E'' 36°47'30'' 111°42'30'' R 6 E R 7 E 111°37'30'' R 7 E R 8 E 111°30'00'' Base from U.S.