You can download it below at the link.
Copy and Paste this into your data>2>_courses.dat file in Notepad (run as admin) under the ****dirt1**** section.
Zia Park
LL280
F,0
393,534
Also, if you download my Start It US mod, you will find complete feature schedule for Zia Park (and every other US track).
DOWNLOAD:
http://www.mediafire.com/download/b973d ... a_Park.zip