Va lle cit o Fa ul t Hapaha Flat FaultWhale Peak Vallecito Mountains Tierra Blanca Mountains Coyote Mountains Carrizo Syncline Ju ne W as hF au ltS. W hale Pea k Fa ult o o o o o o o o o o o o o o o o o o o oo o o o o o o o o o o o o o ooo o o o o b b Qal b b MPi Pd Poc b b Pd MPi Pd QPhy Pd MPi Qt Qal MPi b b Qal QPhy QPhy b Qbw Qt Ms Qt Ms Pd Qal QPc QtPd Qt Pd Pd Qt b Qbw Pd Qt Qt Ptm Ptm QPhy Qt b b Pd Qt Qbw Ms Pd QPc MPi Qt QPhp QPc QPc Pog Ms QPhp b Pd Qt QPc QPhp QPhp QPhy Qal Qt QPc b Pd Qbw QPhp Qal Ms b Poc Qt Qt Pd Qal b b Qt b b b Pd Qal Qal MPi Qbw b Qt QPc QPc Ma Qbw b Pd QPhp Ptm Qbw Qal Qbw Qt Qt QPhp b b QPhy Qbw Qal Ms Qt QPc Ms b Qt MPi Qt Ptm Ms Pts Qal b QPhp Qt MPi Qg Qt Qal b Qal Qt QPhp Pog Qal QPhp Qbw Pog Qg Qbw b Qt Qal Qt Qbw Pd Qal Qt QPhp b Pd Ma MPi Qbw QPcm Pog QPc MPi Qt Pd QPc Qt Qbw Qbw QPhp Pts Pd MPi Qbw Qt Poc Qbw Qal Ms MPi Qbw Qbw Poc Qal Qal Qal Qal Qal Qal MPi MPi MPi MPi Pd Pd QPhy QPhy QPhy Poc Poc Poc Poc bb b 18 19 46 29 25 26 27 25 30 25 o25 30 o 8 37 48 25 25 22 15 25 25 22 27 26 36 26 24 19 21 23 25 12 23 23 29 25 14 15 19 21 20 18 22 32 24 25 28 29 30 25 25 35 46 22 34 33 24 26 22 30 28 25 12 10 12 15 20 26 22 31 42 45 33 3635 46 39 38 35 31 42 42 42 45 38 21 24 10 34 37 27 W es t M es a Fa ul t Ea st M es a Fa ul t Sa lt Sp rin gs F au lt Li ttl e D ev il Fa ul t Mapping and Compilation by Tom Peryam EXPLANATION alluvium gravel terrace deposits Bow Willow Formation pebbly sandstone yellow-bedded sandstone clast-supported conglomerate megabreccia mudstone sandy mixed-provenance green-bedded sandstone Diablo Formation Imperial Group, undifferentiated Split Mountain Group, undifferentiated Alverson Volcanics crystalline basement, undifferentiated 0 2 4 6 8 101 Kilometers Qal Qg Qt Qbw QPhp QPhy QPcc QPcx Ptm Pts Poc Pog Pd MPi Ms Ma b GEOLOGIC MAP OF THE FISH CREEK-VALLECITO BASIN, SOUTHERN CA Lithologic Units Contacts La te P le is to ce ne - Q ua te rn ar y Pa lm S pr in g G ro up Tapiado Formation Lithofacies Hueso Formation Lithofacies Canebrake Conglomerate Lithofacies Olla Formation Lithofacies U pp er Lo w er tim e- tra ns gr es si ve Pl io ce ne -E ar ly P le is to ce ne M io ce ne - Pl io ce ne pr e- C en oz oi c N Fault, dashed where uncertain Strike and dip of bedding Horizontal bedding Dextral Fault Plunging Anticline Plunging Syncline Fault, inferred 48 Map Border Contact, dashed where uncertain Sinistral Fault 1:30,000 Map projected to the North American Geodetic Horizontal Datum of 1983 (NAD83) and gridded by Universal Transverse Mercator (UTM) Compiled from original mapping and Woodard (1963), Winker (1987), Kairouz (2005) and Dorsey et al. (2012). 560000 560000 561000 561000 562000 562000 563000 563000 564000 564000 565000 565000 566000 566000 567000 567000 568000 568000 569000 569000 570000 570000 571000 571000 572000 572000 573000 573000 574000 574000 575000 575000 576000 576000 577000 577000 578000 578000 579000 579000 580000 580000 581000 581000 582000 582000 583000 583000 584000 584000 585000 585000 586000 586000 587000 587000 588000 588000 589000 589000 36 29 00 0 36 29 00 0 36 30 00 0 36 30 00 0 36 31 00 0 36 31 00 0 36 32 00 0 36 32 00 0 36 33 00 0 36 33 00 0 36 34 00 0 36 34 00 0 36 35 00 0 36 35 00 0 36 36 00 0 36 36 00 0 36 37 00 0 36 37 00 0 36 38 00 0 36 38 00 0 36 39 00 0 36 39 00 0 36 40 00 0 36 40 00 0 36 41 00 0 36 41 00 0 36 42 00 0 36 42 00 0 36 43 00 0 36 43 00 0 36 44 00 0 36 44 00 0 36 45 00 0 36 45 00 0 36 46 00 0 36 46 00 0 36 47 00 0 36 47 00 0 36 48 00 0 36 48 00 0 36 49 00 0 36 49 00 0 36 50 00 0 36 50 00 0 36 51 00 0 36 51 00 0 36 52 00 0 36 52 00 0 36 53 00 0 36 53 00 0 36 54 00 0 36 54 00 0 36 55 00 0 36 55 00 0 36 56 00 0 36 56 00 0 36 57 00 0 36 57 00 0 53 3739 42 16 14 20 2326 37 47 45 42 32 24 27 28 28 36 25 23 21 12 23 15 17 42 14 31 34 36 38 35 36 37 28 22 34 36 38 41 37 41 25 20 26 33 33 25 57 76 33 34 52 41 20 20 38 25 36 34 36 29 7076 35 30 41 37 60 22 75 13 17 21 25 24 10 15 26 24 26 27 40 41 25 24 25 27 25 29 34 30 25 28 30 28 27 25 21 21 28 18 26 2627 25 24 27 24 33 29 3133 33 31 31 23 27 25 20 60 7 24 13 9 16 42 41 12 11 55 19 23 7 6 66 44 39 25 37 25 26 24 26 25 25 26 24 2628 27 24 30 27 28 26 23 25 23 24 23 25 33 26 18 24 24 24 26 26 15 20 8 27 21 22 17 21 24 26 22 24 33 25 23 3317 2416 24 33 27 29 34 18 21 14 26 24 28 25 24 22 23 26 28 25 27 25 28 28 30 25 34 33 52 4560 4033 14 16 20 21 24 20 30 23 16 19 26 20 40 50 65 2317 16 13 1220 30 15 20 20 10 202325 25 20 24 2013 15 15 12 10 20 5 17 16 15 20 18 60 26 30 10 8 12 22 35 32 40 64 55 23 20 26 26 20 15 15 1012 20 24 15 10 14 18 12 20 25 Elsinore Fault Zone Elsinore Fault Zone W SD F W SD F WSDF WSDF WSDF