15-155-00007 Swanson B 1 T23S R5W, Sec. 23 C NE SE NW 1660 South, 2310 East, from NW corner 2700; 2713; gray-buff, dense to fine xln fossiliferous lst 2713; 2715; gray sh 2715; 2733; gray-buff, dense to fine xln lst 2733; 2735; gray sh 2735; 2755; gray-buff, fine xln fossiliferous cherty lst 2755; 2757; gray sh 2757; 2767; gray-buff, dense to fine xln lst 2767; 2772; gray, fine grain sub-angular micaceous calc sst 2772; 2823; gray, dense to fine xln cherty lst 2823; 2825; gray sh 2825; 2851; cream-gray, dense to fine xln slightly cherty lst 2851; 2855; gray sh 2855; 2867; cream-gray, fine xln fossiliferous, cherty lst 2867; 2869; gray sh 2869; 2877; gray-buff, fine granular cherty dolomitic lst 2877; 2892; gray-buff, dense to fine xln fossiliferous slightly cherty lst 2892; 2895; gray sh 2895; 2903; buff, oolitic & oocastic porosity lst 2903; 2905; gray sh 2905; 2921; buff-light brown, dense to fine xln lst 2921; 2927; gray sh 2927; 2937; buff, oocastic porosity lst 2937; 2941; gray sh 2941; 2952; cream-buff, dense to fine xln lst 2952; 2955; gray sh 2955; 2973; cream-gray, dense to fine xln slightly cherty lst 2973; 2977; gray sh 2977; 2995; gray-buff dense to fine xln fossiliferous lst 2995; 2997; gray sh 2997; 3012; cream-buff, dense to fine xln slightly cherty lst 3012; 3018; gray sh 3018; 3023; gray-buff, dense to fine xln lst 3023; 3028; gray sh 3028; 3038; gray-buff, dense to fine xln lst 3038; 3042; gray sh 3042; 3048; gray-buff, dense to fine xln lst 3048; 3050; gray sh 3050; 3063; gray-buff, dense to fine xln lst 3063; 3073; gray sh 3073; 3083; cream-gray-buff-brown, dense to fine xln lst 3083; 3092; gray sh 3092; 3098; cream-gray-buff-brown, dense to fine xln lst 3098; 3100; gray sh 3100; 3113; cream-gray-buff-brown, dense to fine xln lst 3113; 3118; gray sh 3118; 3128; gray-buff, dense to fine xln fossiliferous lst 3128; 3131; gray sh 3131; 3141; buff-brown, dense to fine xln lst 3141; 3152; gray sh 3152; 3162; cream-gray, dense to fine xln fossiliferous lst 3162; 3168; gray sh 3168; 3172; cream-gray, dense to fine xln fossiliferous lst 3172; 3182; gray sh 3182; 3189; cream-gray, dense to fine xln fossiliferous lst 3189; 3205; gray sh 3205; 3212; cream-gray dense to fine xln lst 3212; 3222; dark gray sh 3222; 3227; cream-gray dense to fine xln lst 3227; 3235; gray sh 3235; 3245; cream-gray, dense to fine xln fossiliferous lst 3245; 3259; gray sh 3259; 3265; gray-buff, dense to fine xln lst 3265; 3272; gray sh 3272; 3278; gray-buff, dense to fine xln lst 3278; 3295; dark gray sh 3295; 3372; varicolored sh 3372; Mississippian 3372; 3392; white-light buff, fine to coarse xln cherty lst 3392; 3410; white-light gray-light buff, fine granular to medium xln cherty dolomitic lst 3410; 3550; white-light gray-light buff, coarse xln profusely cherty dolomitic lst 3550; 3570; white-light buff, fine to coarse xln cherty lst- white opaque to semi translucent chert 3570; 3602; white-light buff, fine to coarse xln lst 3602; Kinderhookian 3602; 3692; gray, green & greenish gray sh 3692; 3697; gray, granular silty dolomitic sh 3697; 3701; gray, green & greenish gray sh 3701; 3705; gray, granular silty dolomitic sh 3705; 3712; gray, green & greenish gray sh 3712; 3718; gray, granular silty dolomitic sh 3718; 3737; gray, green & greenish gray sh 3737; Misener Sandstone 3737; 3739; gray, fine to coarse grain tight pyritic sst 3739; 3750; gray-buff, sucrosic to medium xln sandy dolomite 3750; 3765; cream, tan & gray, sucrosic to medium xln, sandy cherty vuggy porosity dolomite 3765; 3785; cream-tan, dense to fine xln sandy cherty dolomite limey in part 3785; Maquoketa Shale 3785; 3790; pale greenish gray dolomitic sh 3790; 3795; gray-buff, speckled dolomitic marl 3795; 3800; gray-buff, fine granular dolomite 3800; 3805; gray-buff, speckled dolomitic marl 3805; 3814; gray-buff, fine granular dolomite 3814; 3820; gray-buff, speckled dolomitic marl 3820; 3850; pale greenish gray dolomitic sh 3850; Viola Limestone 3850; 3871; light gray, coarse xln slightly mottled lst 3871; Simpson 3871; 3881; gray, fine to coarse grain sub-round dolomitic sst w/ spotty black stain 3881; 3888; green sh 3888; 3895; gray, fine to coarse grain angular to sub-round, frosted & phosphatic sst 3895; 3905; green sh 3905; 3912; gray, fine to coarse grain angular to sub-round, frosted & phosphatic sst 3912; 3922; green sh 3922; 3933; gray, fine to coarse grain angular to sub-round, frosted & phosphatic sst 3933; 3949; green sandy sh 3949; 3960; gray, fine to coarse grain angular to sub-round, frosted & phosphatic sst highly phosphatic 3960; 3965; gray-buff, medium to coarse xln dolomite 3965; 3970; gray-buff, medium to coarse xln dolomite trace oolitic chert scattered oocastic porosity 3970; 3975; gray-buff, medium to coarse xln dolomite