BG does not link up with the southern end of Interurban at all. I encountered some trail surveys this past Tuesday, and made the comment on the two I took that ALL these trails need to link up with each other.
There is no direct link to the Cedar River Trail from Interurban/GRT.
There is no direct link with Interurban from Big Soos Creek.
There is no direct link from Big Soos Creek to Cedar River.
There is no direct link with Interurban and I-90 (which would get you on the Lake Washington Loop).
East Hill