Nytrydr, I'm very jealous of you and your son having such a good time in the dirt. I bought a couple of KLX250S's a few years back to entice my son to come visit more often and for us to ride together. We've had some great times but too few. Now he's in Seattle and I'm in North Carolina so we don't get to see each other as much.
I do still try to ride on dirt as much as I can and have had several wonderful trips to the Phoenix area to ride with a good friend who lives there. Generally we ride in the national forests north of Phoenix that border I-17. Back in April I managed to combine business and pleasure and rode to the community of Crown King using the jeep trail from the southern approach.
Below is the link to a video of the ascent part of the trip. For those of you who do not like the repetitive elevator music of Youtube, take heart. This video has something for everyone from rock, classic rock, bluegrass, folk, and native American. Two words of caution...1) it's about 30 minutes long...I just couldn't find things I wanted to edit out!, and 2) because it is so long the quality is at low resolution so it could be uploaded. We used to GoPro's and recorded about 8 hours of video on the trip.
<iframe src="http://player.vimeo.com/video/42056504" width="500" height="275" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe> <p><a href="http://vimeo.com/42056504">Up The Rear of Crown King</a> from <a href="http://vimeo.com/user1253133">kmac250</a> on <a href="http://vimeo.com">Vimeo</a>.</p>