Try http://getprequalified.com on the city pages.

Sheira,
If you are just interested in Prescott, you can go to the county website...not going to tell you much as for elevation or you can download http://earth.google.com or Google map even Trulia. Great resource just type in the address and get the location on the map. Just remember the general rule of thumb in Prescott is that South is higher elevation than the north or the north east. Temperature will be a bit hotter as you get into the valleys and coolers in the high grown. Now after you down load and type in 86301 zip code you can move the mouse around and look at the bottom of the page and you will get the elevation.
If you have troubles, email me the property I will email you elevation, no hassles.
Happy hunting,
Brad

The best source that I know of is the Yavapai County web page: http://mapserver.co.yavapai.az.us/interactive/map.asp Once there you can search for the property by address or parcel number by using the drop down arrow on the upper right of the page. Once you find the property you can select from the right side and select "land features" then select "countours" the map will reset and you will be able to see the altitude lines onthe parcel. If you need additional help with this please go to my webpage and send me an email. I will be very happy to help you with your quest.

Here in Breckenridge I deal with the same issue. I have started to keep my GPS in my car so if I am out looking at property I can tell buyers the elevation of the property. I have not found a website yet, but that might work well too. Good luck!

Chris

Go to http://mapserver.co.yavapai.az.us/interactive/map.asp
On the right side of the screen, click land features, check one of the boxes for contours. The go to the search screen above and do a parcel number search....you should get a map showing the topography and elevation.

You could probably check on Google Earth. There is a lot of useful information there.