TxDOT - 41MS78

Part of: Texas Department of Transportation (TxDOT)

On behalf of the Texas Department of Transportation, SWCA Environmental Consultants conducted data recovery investigations of the Llano Crossing site (41MS78) as part of the Ranch-to-Market Road 1871 bridge replacement project (project) (CSJ: 1753-01-017) in Mason County, Texas. Conducted from February 6 to March 21, 2019, the field investigations revealed a deeply stratified multicomponent prehistoric site that includes sparse but isolable occupations of multiple intervals from Paleoindian through Late Prehistoric times. To mitigate project-related effects to the site, investigations were conducted in compliance with Section 106 of the National Historic Preservation Act (54 U.S. Code 306108) and the Antiquities Code of Texas (9 Natural Resources Code, Chapter 191). The site was previously determined eligible for the National Register of Historic Places (NRHP) (36 Code of Federal Regulations 60.4) and for designation as a State Antiquities Landmark (SAL) (13 Texas Administrative Code 26.8, 26.12). Kevin Miller served as Principal Investigator under Texas Antiquities Permit No. 8723. Integrated Environmental Solutions, Hicks & Company, geoarcheologist Dr. Charles Frederick, and numerous specialized analysts contributed to the analyses and field investigations.

The Llano Crossing site includes Paleoindian, Early, Middle, and Late Archaic, and subtle Late Prehistoric components buried in high, deep terraces of the Llano River overlooking a natural historic river crossing, a strategic position that may have been the reason for its selection as an occupational locus through the millennia. The investigations revealed material assemblages consisting of diffusely scattered burned rock, debitage, and lithic tools, which were predominantly recovered from deep depositional strata in the gradually aggrading terraces that formed throughout the Holocene. The conditions were not conducive to preservation of organics within the project’s area of potential effects (APE). However, isolable concentrations of artifacts were identified associated with several intact features. In the few components where such patterns were identified, hints at archeological surfaces, patterns, or site structure could be discerned. Since radiocarbon dating was only possible in a few areas with charcoal preservation, optically stimulated luminescence and temporally diagnostic artifacts provided important data for developing the chronostratigraphy. Although the investigations identified some intact areas, poor floral and faunal preservation, sparse and unsubstantial material assemblages, and highway construction disturbances imposed interpretive limitations. Nevertheless, the site yielded important comparative information on regional patterns through time. Therefore, the investigations support the NRHP and SAL eligibility of the site under Criterion D. The site extends beyond the APE and these unevaluated areas have a potential for substantial intact deposits.

Resources Inside This Collection (Viewing 1-100 of 122)

  1. 1. CAS.2021.120_TAC Permit 8723_Bag Log.pdf (2021)
  2. 1. CAS.2021.120_TAC Permit 8723_Feature 1 Forms & Maps.pdf (2021)
  3. 1. CAS.2021.120_TAC Permit 8723_South Side Unit A Unit Level Forms & Maps.pdf (2021)
  4. 10. CAS.2021.120_TAC Permit 8723_Feature 10 Forms & Maps.pdf (2021)
  5. 10. CAS.2021.120_TAC Permit 8723_Feature Log.pdf (2021)
  6. 10. CAS.2021.120_TAC Permit 8723_N983 E972 Unit Level Forms & Maps.pdf (2021)
  7. 11. CAS.2021.120_TAC Permit 8723_N984 E970 Unit Level Forms & Maps.pdf (2021)
  8. 12. CAS.2021.120_TAC Permit 8723_N984 E971 Unit Level Forms & Maps.pdf (2021)
  9. 13. CAS.2021.120_TAC Permit 8723_N984 E972 Unit Level Forms & Maps.pdf (2021)
  10. 14. CAS.2021.120_TAC Permit 8723_N988 E995 Unit Level Forms & Maps.pdf (2021)
  11. 15. CAS.2021.120_TAC Permit 8723_N988 E996 Unit Level Forms & Maps.pdf (2021)
  12. 16. CAS.2021.120_TAC Permit 8723_N988 E997 Unit Level Forms & Maps.pdf (2021)
  13. 17. CAS.2021.120_TAC Permit 8723_N988 E998 Unit Level Forms & Maps.pdf (2021)
  14. 18. CAS.2021.120_TAC Permit 8723_N989 E994 Unit Level Forms & Maps.pdf (2021)
  15. 19. CAS.2021.120_TAC Permit 8723_N989 E995 Unit Level Forms & Maps.pdf (2021)
  16. 2. CAS.2021.120_TAC Permit 8723_Feature 2 Forms & Maps.pdf (2021)
  17. 2. CAS.2021.120_TAC Permit 8723_South Side Unit B Unit Level Forms & Maps.pdf (2021)
  18. 2. CAS.2021.120_TAC Permit 8723_Unique Item Log.pdf (2021)
  19. 20. CAS.2021.120_TAC Permit 8723_N989 E996 Unit Level Forms & Maps.pdf (2021)
  20. 21. CAS.2021.120_TAC Permit 8723_N989 E997 Unit Level Forms & Maps.pdf (2021)
  21. 22. CAS.2021.120_TAC Permit 8723_N989 E998 Unit Level Forms & Maps.pdf (2021)
  22. 23. CAS.2021.120_TAC Permit 8723_N990 E994 Unit Level Forms & Maps.pdf (2021)
  23. 24. CAS.2021.120_TAC Permit 8723_N990 E995 Unit Level Forms & Maps.pdf (2021)
  24. 25. CAS.2021.120_TAC Permit 8723_N990 E996 Unit Level Forms & Maps.pdf (2021)
  25. 26. CAS.2021.120_TAC Permit 8723_N990 E997 Unit Level Forms & Maps.pdf (2021)
  26. 27. CAS.2021.120_TAC Permit 8723_N990 E998 Unit Level Forms & Maps.pdf (2021)
  27. 28. CAS.2021.120_TAC Permit 8723_N991 E994 Unit Level Forms & Maps.pdf (2021)
  28. 29. CAS.2021.120_TAC Permit 8723_N991 E995 Unit Level Forms & Maps.pdf (2021)
  29. 3. CAS.2021.120_TAC Permit 8723_C-14 Log.pdf (2021)
  30. 3. CAS.2021.120_TAC Permit 8723_Feature 3 Forms & Maps.pdf (2021)
  31. 3. CAS.2021.120_TAC Permit 8723_South Side Unit C Unit Level Forms & Maps.pdf (2021)
  32. 30. CAS.2021.120_TAC Permit 8723_N991 E996 Unit Level Forms & Maps.pdf (2021)
  33. 31. CAS.2021.120_TAC Permit 8723_N991 E997 Unit Level Forms & Maps.pdf (2021)
  34. 32. CAS.2021.120_TAC Permit 8723_N991 E998 Unit Level Forms & Maps.pdf (2021)
  35. 33. CAS.2021.120_TAC Permit 8723_N992 E995 Unit Level Forms & Maps.pdf (2021)
  36. 34. CAS.2021.120_TAC Permit 8723_N992 E996 Unit Level Forms & Maps.pdf (2021)
  37. 35. CAS.2021.120_TAC Permit 8723_N992 E997 Unit Level Forms & Maps.pdf (2021)
  38. 36. CAS.2021.120_TAC Permit 8723_N992 E998 Unit Level Forms & Maps.pdf (2021)
  39. 37. CAS.2021.120_TAC Permit 8723_N993 E995 Unit Level Forms & Maps.pdf (2021)
  40. 38. CAS.2021.120_TAC Permit 8723_N993 E996 Unit Level Forms & Maps.pdf (2021)
  41. 39. CAS.2021.120_TAC Permit 8723_N993 E997 Unit Level Forms & Maps.pdf (2021)
  42. 4. CAS.2021.120_TAC Permit 8723_Feature 4 Forms & Maps.pdf (2021)
  43. 4. CAS.2021.120_TAC Permit 8723_South Side Unit D Unit Level Forms & Maps.pdf (2021)
  44. 4. CAS.2021.120_TAC Permit 8723_Special Sample Log.pdf (2021)
  45. 40. CAS.2021.120_TAC Permit 8723_N993 E998 Unit Level Forms & Maps.pdf (2021)
  46. 41. CAS.2021.120_TAC Permit 8723_N994 E994 Unit Level Forms & Maps.pdf (2021)
  47. 42. CAS.2021.120_TAC Permit 8723_N994 E995 Unit Level Forms & Maps.pdf (2021)
  48. 43. CAS.2021.120_TAC Permit 8723_N994 E996 Unit Level Forms & Maps.pdf (2021)
  49. 44. CAS.2021.120_TAC Permit 8723_N994 E997 Unit Level Forms & Maps.pdf (2021)
  50. 45. CAS.2021.120_TAC Permit 8723_N994 E998 Unit Level Forms & Maps.pdf (2021)
  51. 46. CAS.2021.120_TAC Permit 8723_N995 E994 Unit Level Forms & Maps.pdf (2021)
  52. 47. CAS.2021.120_TAC Permit 8723_N995 E995 Unit Level Forms & Maps.pdf (2021)
  53. 48. CAS.2021.120_TAC Permit 8723_N995 E996 Unit Level Forms & Maps.pdf (2021)
  54. 49. CAS.2021.120_TAC Permit 8723_N995 E997 Unit Level Forms & Maps.pdf (2021)
  55. 5. CAS.2021.120_TAC Permit 8723_Feature 5 Forms & Maps.pdf (2021)
  56. 5. CAS.2021.120_TAC Permit 8723_Flotation Log.pdf (2021)
  57. 5. CAS.2021.120_TAC Permit 8723_N982 E970 Unit Level Forms & Maps.pdf (2021)
  58. 50. CAS.2021.120_TAC Permit 8723_N995 E998 Unit Level Forms & Maps.pdf (2021)
  59. 51. CAS.2021.120_TAC Permit 8723_N996 E994 Unit Level Forms & Maps.pdf (2021)
  60. 52. CAS.2021.120_TAC Permit 8723_N996 E995 Unit Level Forms & Maps.pdf (2021)
  61. 53. CAS.2021.120_TAC Permit 8723_N996 E996 Unit Level Forms & Maps.pdf (2021)
  62. 54. CAS.2021.120_TAC Permit 8723_N996 E997 Unit Level Forms & Maps.pdf (2021)
  63. 55. CAS.2021.120_TAC Permit 8723_N996 E998 Unit Level Forms & Maps.pdf (2021)
  64. 56. CAS.2021.120_TAC Permit 8723_N997 E993 Unit Level Forms & Maps.pdf (2021)
  65. 57. CAS.2021.120_TAC Permit 8723_N997 E994 Unit Level Forms & Maps.pdf (2021)
  66. 58. CAS.2021.120_TAC Permit 8723_N997 E995 Unit Level Forms & Maps.pdf (2021)
  67. 59. CAS.2021.120_TAC Permit 8723_N997 E996 Unit Level Forms & Maps.pdf (2021)
  68. 6. CAS.2021.120_TAC Permit 8723_Feature 6 Forms & Maps.pdf (2021)
  69. 6. CAS.2021.120_TAC Permit 8723_Matrix Log.pdf (2021)
  70. 6. CAS.2021.120_TAC Permit 8723_N982 E971 Unit Level Forms & Maps.pdf (2021)
  71. 60. CAS.2021.120_TAC Permit 8723_N997 E997 Unit Level Forms & Maps.pdf (2021)
  72. 61. CAS.2021.120_TAC Permit 8723_N997 E998 Unit Level Forms & Maps.pdf (2021)
  73. 62. CAS.2021.120_TAC Permit 8723_N998 E993 Unit Level Forms & Maps.pdf (2021)
  74. 63. CAS.2021.120_TAC Permit 8723_N998 E994 Unit Level Forms & Maps.pdf (2021)
  75. 64. CAS.2021.120_TAC Permit 8723_N998 E995 Unit Level Forms & Maps.pdf (2021)
  76. 65. CAS.2021.120_TAC Permit 8723_N998 E996 Unit Level Forms & Maps.pdf (2021)
  77. 66. CAS.2021.120_TAC Permit 8723_N998 E997 Unit Level Forms & Maps.pdf (2021)
  78. 67. CAS.2021.120_TAC Permit 8723_N998 E998 Unit Level Forms & Maps.pdf (2021)
  79. 68. CAS.2021.120_TAC Permit 8723_N999 E994 Unit Level Forms & Maps.pdf (2021)
  80. 69. CAS.2021.120_TAC Permit 8723_N999 E995 Unit Level Forms & Maps.pdf (2021)
  81. 7. CAS.2021.120_TAC Pemrit 8723_N982 E972 Unit Level Forms & Maps.pdf (2021)
  82. 7. CAS.2021.120_TAC Permit 8723_Feature 7 Forms & Maps.pdf (2021)
  83. 7. CAS.2021.120_TAC Permit 8723_Pollen Log.pdf (2021)
  84. 70. CAS.2021.120_TAC Permit 8723_N999 E996 Unit Level Forms & Maps.pdf (2021)
  85. 71. CAS.2021.120_TAC Permit 8723_N999 E997 Unit Level Forms & Maps.pdf (2021)
  86. 72. CAS.2021.120_TAC Permit 8723_N999 E998 Unit Level Forms & Maps.pdf (2021)
  87. 73. CAS.2021.120_TAC Permit 8723_N1020 E1000 Unit Level Forms & Maps.pdf (2021)
  88. 74. CAS.2021.120_TAC Permit 8723_N1033 E1005 Unit Level Forms & Maps.pdf (2021)
  89. 75. CAS.2021.120_TAC Permit 8723_N1034 E1004 Unit Level Forms & Maps.pdf (2021)
  90. 76. CAS.2021.120_TAC Permit 8723_N1034 E1006 Unit Level Forms & Maps.pdf (2021)
  91. 77. CAS.2021.120_TAC Permit 8723_N1035 E1005 Unit Level Forms & Maps.pdf (2021)
  92. 78. CAS.2021.120_TAC Permit 8723_N1036 E1004 Unit Level Forms & Maps.pdf (2021)
  93. 79. CAS.2021.120_TAC Permit 8723_N1036 E1006 Unit Level Forms & Maps.pdf (2021)
  94. 8. CAS.2021.120_TAC Permit 8723_Faunal Log.pdf (2021)
  95. 8. CAS.2021.120_TAC Permit 8723_Feature 8 Forms & Maps.pdf (2021)
  96. 8. CAS.2021.120_TAC Permit 8723_N983 E970 Unit Level Forms & Maps.pdf (2021)
  97. 80. CAS.2021.120_TAC Permit 8723_N1037 E1005 Unit Level Forms & Maps.pdf (2021)
  98. 81. CAS.2021.120_TAC Permit 8723_N1037 E1006 Unit Level Forms & Maps.pdf (2021)
  99. 82. CAS.2021.120_TAC Permit 8723_N1038 E1004 Unit Level Forms & Maps.pdf (2021)
  100. 83. CAS.2021.120_TAC Permit 8723_N1038 E1005 Unit Level Forms & Maps.pdf (2021)