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:
List of county routes in Suffolk County, New York (76–100)
Table title:
County Route 100
Table:
<table id='hittask' contenteditable='False'>
<tr> <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 > Destinations </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Brentwood </td><th colspan=1 rowspan=1 > 0.0 </th><td colspan=1 rowspan=1 > 0.0 </td><td class="highlighted"  colspan=1 rowspan=1 > CR 13 </td><td class="highlighted"  colspan=1 rowspan=1 > Continues west as a Town of Islip Road </td></tr>
<tr> <td colspan=1 rowspan=2 > Central Islip </td><th colspan=1 rowspan=1 >  </th><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > NY 111 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 >  </th><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > CR 17 </td><td colspan=1 rowspan=1 > Former NY 111 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Islandia </td><th colspan=1 rowspan=1 >  </th><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > NY 454 </td><td class="highlighted"  colspan=1 rowspan=1 > Continues northeast as Old Nichols Road </td></tr>
<tr> <td colspan=6 rowspan=1 > 1.000 mi = 1.609 km; 1.000 km = 0.621 mi </td></tr>
</table>
Question:
What is Suffolk County Road and where does it begin and end at?
Answer:
Suffolk County Road 100, is the main west-to-east route, running from the Suffolk County Road 13 in Brentwood to New York State Route 454 in Islandia.