what you want to do is follow the red line and when you get to the round yellow dot make sure you take a turn around it and then continue the red line.
picture http://data.fuskbugg.se/skalman01/---min.JPG
For JC everyday always make icy prism because you get blue gems that you can sell and sometimes you will gett one dragons eye + 2 blue gem and thats 300g+.
Also if you feeling lucky you can buy saronite ore at the ah or ask in trade chat,
for maby 35g stack and prospect it hopfully you will get a blue item worth 50g and thats 15g profit, maby you will get 2 blue gems.
If you dont have JC you can always ask a friend or someone in your guild.
If theres alot of people mining in Sholazar Basin, Icecrown is really good to.