Foldem
WKR
Just curious how you picked unit 18? It wouldn't be my first choice just by looking at harvest statistics and it's proximity to Denver. Also, 2nd season has the lowest success rate on elk in most units, including 18. 1st season was 21% and 2nd is 7% which INCLUDES cows and calfs! Unless you know somebody that has hunted 18 and is steering you that way I would personally take a look through the stats and find a unit with better success for your first western hunt, then make sure it has publicly accessible land in it. I don't think harvest success is as important once you've got a few hunts under your belt and start learning what elk do when the pressure hits but when you are brand new 7% harvest is a recipe for not seeing an elk.
https://cpw.state.co.us/Documents/Hunting/BigGame/Statistics/Elk/2017StatewideElkHarvest.pdf
https://cpw.state.co.us/Documents/Hunting/BigGame/Statistics/Elk/2017StatewideElkHarvest.pdf