Put in on the R. Pekans (on the road to Fremont); down the Pekans, up the R. Grasse, carry into the Marguerite. Nice easy whitewater run down to the 200-Km-long lake fromed by the SM-3 dam. Paddle the lake down to a boat ramp a few Km above the dam. Take out there. There is no river-level water coming out below the dam.