Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
William H. Natcher Parkway
Table title:
Exit list
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > County </th><th colspan=1 rowspan=1 > Location </th><th colspan=1 rowspan=1 > mi </th><th colspan=1 rowspan=1 > km </th><th colspan=1 rowspan=1 > Exit </th><th colspan=1 rowspan=1 > Destinations </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=6 > Warren </td><td class="highlighted"  colspan=1 rowspan=6 > Bowling Green </td><th colspan=1 rowspan=1 > 0.000 </th><td colspan=1 rowspan=1 > 0.000 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > US 231 (Scottsville Road) – Bowling Green, Scottsville </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 1.000 </th><td colspan=1 rowspan=1 > 1.609 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > KY 622 – Bowling Green, Plano </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2.000 </th><td colspan=1 rowspan=1 > 3.219 </td><td colspan=1 rowspan=1 > 2 </td><td class="highlighted"  colspan=1 rowspan=1 > I-65 – Louisville, Nashville (TN) </td><td class="highlighted"  colspan=1 rowspan=1 > I-65 exits 20A-B; signed as exits 2A and 2B </td></tr>
<tr> <th colspan=1 rowspan=1 > 5.572 </th><td colspan=1 rowspan=1 > 8.967 </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > US 31W – Bowling Green, Franklin </td><td colspan=1 rowspan=1 > To Western Kentucky University </td></tr>
<tr> <th colspan=1 rowspan=1 > 6.969 </th><td colspan=1 rowspan=1 > 11.216 </td><td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > US 68 / KY 80 – Bowling Green, Russellville </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 9.422 </th><td colspan=1 rowspan=1 > 15.163 </td><td colspan=1 rowspan=1 > 9 </td><td colspan=1 rowspan=1 > US 231 – Bowling Green, Morgantown </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=3 > Butler </td><td colspan=1 rowspan=2 > Morgantown </td><th colspan=1 rowspan=1 > 28.147 </th><td colspan=1 rowspan=1 > 45.298 </td><td colspan=1 rowspan=1 > 28 </td><td colspan=1 rowspan=1 > US 231 / KY 79 – Morgantown </td><td colspan=1 rowspan=1 > Southern end of US 231 Truck/KY 79 Truck concurrency </td></tr>
<tr> <th colspan=1 rowspan=1 > 29.428 </th><td colspan=1 rowspan=1 > 47.360 </td><td colspan=1 rowspan=1 > 29 </td><td colspan=1 rowspan=1 > KY 70 (Veterans Way) – Morgantown, Rochester </td><td colspan=1 rowspan=1 > Northern end of US 231 Truck/KY 79 Truck concurrency </td></tr>
<tr> <td colspan=1 rowspan=1 > ​ </td><th colspan=1 rowspan=1 > 35.845 </th><td colspan=1 rowspan=1 > 57.687 </td><td colspan=1 rowspan=1 > 36 </td><td colspan=1 rowspan=1 > US 231 – Cromwell, Morgantown </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=2 > Ohio </td><td colspan=1 rowspan=1 > ​ </td><th colspan=1 rowspan=1 > 43.270 </th><td colspan=1 rowspan=1 > 69.636 </td><td colspan=1 rowspan=1 > 43 </td><td colspan=1 rowspan=1 > Western Kentucky Parkway – Elizabethtown, Paducah </td><td colspan=1 rowspan=1 > Signed as exits 43A and 43B </td></tr>
<tr> <td colspan=1 rowspan=1 > Hartford </td><th colspan=1 rowspan=1 > 49.796 </th><td colspan=1 rowspan=1 > 80.139 </td><td colspan=1 rowspan=1 > 50 </td><td colspan=1 rowspan=1 > KY 69 – Beaver Dam, Hartford </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Daviess </td><td colspan=1 rowspan=1 > Owensboro </td><th colspan=1 rowspan=1 > 72.184 </th><td colspan=1 rowspan=1 > 116.169 </td><td colspan=1 rowspan=1 > 72 </td><td colspan=1 rowspan=1 > US 60 (Wendell H. Ford Expressway) / US 231 to Audubon Parkway – Hawesville, Henderson, Owensboro </td><td colspan=1 rowspan=1 > Signed as exits 72A and 72B; northbound only; to Ben Hawes Golf Course and Park </td></tr>
<tr> <td colspan=7 rowspan=1 > 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus </td></tr>
</table>
Question:
At what interchange does the William H. Natcher begin and where does it continue to?
Answer:
William H. Natcher Parkway began at an interchange with US Route 231 (US 231) and continues at I-65 (exit 20) near Bowling Green.