Brian Bisnett, an unassuming landscape architect and land-use planner based in Grass Valley, almost single-handedly salvaged a 924-acre swathe of undulate land that straddles the border of Yuba and Nevada counties and protected the large tract from development while opening it up to the public. The recreational purposes are plentiful, as the property includes a mile of frontage along the Yuba River and nearly another mile of frontage of Deer Creek, providing access to the confluence of the two significant Nevada County water bodies. “I’ve been told this is one of the best places for fly-fishing in the entire foothills,” …