WTB keeps cranking out the mixed terrain tires. Shortly after launching the Sendero 47mm knobby option, it followed with the Venture 650b x 47mm tire. The Venture is less aggressive than the Sendero, for the cyclists looking to ride gravel and pavement more than loose or wet trails.
Just as with the Sendero, the Venture is currently only available in the 650b/27.5 size.
More info: wtb.com