15-155-00343 SWANSON, C. F. 'B' 1
T23S R5W, Sec. 21  SE SE SE  330 North, 330 West, from SE corner 
2000; 2013; red & gray sh
2013; 2014; gray fine grain sub-angular micaceous sst
2014; 2024; red & gray sh
2024; 2025; gray fine grain sub-angular micaceous sst
2025; 2036; red & gray sh
2036; 2037; gray fine grain sub-angular micaceous sst
2037; 2058; red & gray sh
2058; 2060; gray-buff, dense to fine xln lst
2060; 2063; gray sh
2063; 2084; cream-gray-buff, dense to fine xln slightly chety lst
2084; 2091; red & gray sh
2091; 2102; cream-gray, fine xln fossiliferous lst
2102; 2108; red & gray sh
2108; 2113; cream-gray, fine xln fossiliferous lst
2113; 2125; red & gray sh
2125; 2130; gray, fine grain, sub-angular micaceous sst
2130; 2147; red & gray sh
2147; 2148; gray, fine grain, sub-angular micaceous sst
2148; 2165; red & gray sh
2165; Topeka Limestone
2165; 2182; gray-buff, dense to fine xln lst
2182; 2186; gray sh
2186; 2238; cream, fine xln, fossiliferous lst, scattered fair oocastic porosity
2238; 2241; gray sh
2241; 2265; cream, fine xln, fossiliferous lst, scattered fair oocastic porosity
2265; 2268; gray sh
2268; 2304; cream-gray, fine xln, fossiliferous, slightly cherty lst
2304; 2306; gray sh
2306; 2332; white-cream, fine xln lst, streaks pinpoint porosity
2332; 2334; gray sh
2334; 2377; cream, fine xln,fossiliferous, slightly cherty lst
2377; 2380; gray sh
2380; 2502; crea, fine xln, fossiliferous lst, streaks pinpoint porosity
2502; Heebner Shale
2502; 2506; black sh
2506; 2515; gray-buff, dense to fine xln lst
2515; 2525; red & gray sh
2525; 2541; cream-light gray, dense to fine xln lst
2541; 2548; red & gray sh
2548; 2552; gray, fine grain sub-angular micaceous sst
2552; 2559; red & gray sh
2559; 2564; gray, fine grain sub-angular micaceous sst
2564; 2576; red & gray sh
2576; 2582; gray, fine grain sub-angular micaceous sst
2582; 2596; red & gray sh
2596; 2602; gray, fine grain sub-angular micaceous sst
2602; 2618; red & gray sh
2618; 2620; gray, fine grain sub-angular micaceous sst
2620; 2632; red & gray sh
2632; 2638; gray, fine grain sub-angular micaceous sst
2638; 2648; red & gray sh
2648; 2655; gray, fine grain sub-angular micaceous sst
2655; 2660; red & gray sh
2660; 2680; red & gray sh sandy
2680; 2690; red & gray sh
2690; 2710; red & gray sh sandy
2710; 2718; red & gray sh
2718; Lansing
2718; 2742; gray-buff, dense to fine xln lst
2742; 2744; gray sh
2744; 2763; cream-gray-light buff, dense to fine xln fossiliferous lst
2763; 2765; gray sh
2765; 2782; cream-gray, dense to fine xln lst, scattered oocastic porosity
2782; 2784; gray sh
2784; 2823; gray-buff, dense to fine xln, fossiliferous lst cherty in part
2823; 2825; gray sh
2825; 2875; cream-gray-buff, fine xln, fossiliferous, slightly cherty lst
2875; 2895; gray-buff, fine xln,fossiliferous lst, scattered oocastic porosity
2895; 2900; gray sh
2900; 2925; cream-gray-buff, fine xln, fossiliferous, slightly cherty lst, scattered oocastic porosity
2925; 2962; gray-buff, dense to fine xln lst
2962; 2964; gray sh
2964; 2982; cream-gray, oocastic porous ( good porosity ) lst
2982; 2985; gray sh
2985; 3002; cream-gray-buff, dense to fine xln fossiliferous lst
3002; 3009; gra ysh
3009; 3032; gray-buff, dense to fine xln lst
3032; 3037; gray sh
3037; 3051; cream-gray, dense to fine xln fossiliferous lst
3051; 3058; gray sh
3058; 3076; cream-gray-buff, dense to fine xln slilghtly cherty lst
3076; 3083; gray sh
3083; 3112; cream-gray, dense to gine xln slightly cherty lst
3112; 3114; gray sh
3114; 3125; gray, oocastic porous ( good porosity ) lst
3125; 3131; gray sh
3131; 3145; gray-buff, dense to fine xln lst
3145; 3165; red & gray sh
3165; 3172; cream-gray-buff, dense to fine xln lst
3172; 3186; red & gray sh
3186; 3198; cream-gray-buff, dense to fine xln lst
3198; 3213; red & gray sh
3213; 3231; cream-gray, fine xln lst
3231; 3236; red & gray sh
3236; 3252; cream-gray-buff, dense to fine xln, fossiliferous lst
3252; 3262; red & gray sh
3262; 3272; gray-buff, dense to fine xln lst
3272; 3298; red & gray sh
3298; 3302; gray-buff, dense to fine xln lst
3302; 3335; red & gray sh
3335; 3337; gray-buff, dense to fine xln lst
3337; 3361; red & gray sh
3361; 3363; gray-buff, dense to fine xln lst
3363; 3390; red & gray sh
3390; Mississippian
3390; 3402; white, fine to medium xln lst; white, opaque to sub-opaque, fossiliferous cherty, residual in part
3402; 3404; buff sucrosic xln porous ( good porosity ) dolomite, spotty dark oil stain in dolomite & some of chert
3404; 3421; white, fine to medium xln lst; white, opaque to sub-opaque, fossiliferous cherty, residual in part
3421; 3423; buff sucrosic xln porous ( good porosity ) dolomite, spotty dark oil stain in dolomite & some of chert
3423; 3445; white, fine to medium xln lst; white, opaque to sub-opaque, fossiliferous cherty, residual in part
3445; 3585; white-cream, fine to medium xln cherty dolomitic lst
3585; 3622; cream-light gray, fine to medium xln lst
3622; kinderhookian
3622; 3738; grayish green & greenish gray sh
3738; Misener Sandstone
3738; 3743; white, fine to medium grain, sub-round, pyritic sst, spotty light oil stain
3743; Hunton
3743; 3758; gray-buff, sucrosic to medim xln, cherty, sandy dolomite
3758; 3776; light tan to light gray, dense to fine xln ,sandy, cherty dolomite
3776; Maquoketa Shale
3776; 3780; pale green dolomitic sh
3780; 3790; gray speckled dolomitic marl
3790; 3800; pale green dolomitic sh
3800; 3804; gray speckled dolomitic marl
3804; 3847; pale green dolomitic sh
3847; Viola Limestone
3847; 3871; light gray, mottled, coarse xln lst
3871; 3888; light gray, fine to medium grain, sub-round, slight porosity, dolomitic sst, spots dark oil stain
3888; 3890; green sh
3890; 3905; gray, fine to medium grain, sub-angular to sub-round, frosted & phosphatic sst
3905; 3910; green sh
3910; 3945; gray, fine to medium grain, sub-angular to sub-round, frosted & phosphatic sst
3945; 3950; green sh
3950; 3956; gray, fine to medium grain, sub-angular to sub-round, frosted & phosphatic sst
3956; Arbuckle
3956; 3975; gray-buff, medium to coarse xln dolomite, scattered vuggy porosity