Okay here is the scoop. I called and found out how the courses runs. All the rides start behind McQuoid's in Isle and take the Soo Line trail to Onamia. The short ride stops there. The 35 and 70 continue on cty rd 26(not sure where that is) up to 169. Then at that point, the 70 mile ride turns left and goes all the way around the lake. The 35 mile ride turns right and follows the lake back to McQuoid's in Isle.