This trail begins at the southernmost trailhead of Sunbridge Hills Conservation Area
. It remains on conservation land until it passes the scenic overlook. Once at the overlook, this is River Bluffs Park. This is very important as the rules and restrictions are very
different for the two areas.
The trailhead is quite visible from Huntoon Road. It is immediately north of the guardrail where the road crosses the Interstate. Just a few meters in, B-Line briefly intersects with The Comeback Trail
. Keep straight and there is a small log drop that will assure you that this is the right trail.
There are a few turns right after the little drop and then the trail straightens out and beckons riders to pick up speed. Just when you get going, there is a flow-killing sharp left up a teenie rise. After getting over the disappointment of said turn, the trail speeds up again.
Carefully rip through some slalom turns and emerge onto one of the most scenic spots and the transition to city property.
Keep following the trail down the ridge and you'll have to make a hard right. This is where things get steep. It's not everyone's cup o' tea due to the grade and heaps of roots. In the fall and winter, it can be very difficult to find traction. There is a small flat area at the bottom of the steep, rooty line. B-Line is practically straight, just bending slightly left.
Following the "proper" line steeply downhill off the small flat spot at the bottom of the rooty steep, B-Line quickly crosses Upper River Bluffs
. Keep heading straight until B-Line turns off to the right in less than 100 feet (make sure to follow this turn otherwise you'll end up on private property). The moment you level out after crossing Upper River Bluffs
, eye-up the 12 inch rise of the trail that marks the, nearly, invisible turn. The turn to the right will drop you into the other steep portion of the trail.
The second steep is very short and the trail becomes flowy again, picking its way through old park ruins from the 1930s. There is a very short uphill before the trail goes completely flat. There are log hops and rolls to make the flats a little more interesting.
B-Line ends where it meets the Sunbridge Downhill
. Continue to the bottom for the return climb back to the 5-Point Intersection. Or riders can turn up the DH to the 5-Point intersection.