[small_l_libertarian]

You're going to like my tentative answer, but I have to go figure out a way to zoom in on this map.

South out of Poway (right past Dehesa) to I-8 to Ocotillo.

I'm gonna go see if I can get closer on the map.

[John Jamieson]

1 hour and 48 minutes, Poway to El Cajon to Ocotillo. 83 miles, right past Dehesa!

[small_l_libertarian]

Dehesa is just south of I-8. I think this link will take you to a pretty good view (I hope!).

http://maps.yahoo.com/py/maps.py?Pyt=Tmap&addr=dehesa&city=El+Cajon&state=CA&csz=El+Cajon,+CA&slt=32.782300&sln=-116.876200&mlt=32.756823&mln=-116.921825&zip=&country=us&BFKey=&BFCat=&BFClient=&mag=7&cs=9&name=&desc=&off=w&poititle=&poi=&ds=n

CA-67 is the road south out of Poway - you'll find it at the top of this map.