There is a calculator
here. You will need to find the lat/long of the area of interest. Set the time zone to -7 (will be in DST in July) and the month to whatever you want.
If you came from the
Wikipedia GEO-Tool page or if you are following any comparable links, you don't need to customize coordinates in this calendar.
The legend is wrong. R=Sunrise, U=Sunset, S=Daylight hours.
West of the escarpment, if you have a western horizon view, sunset will be later (you can see further because of your altitude). Same thing if you are on the escarpment, sunrise will be earlier.
It does generate a CSV file which you can use with a spread-sheet.
Have fun.
