Nevada County Sheriff’s deputies conducting a compliance check for the county’s new medical marijuana cultivation ordinance allegedly uncovered a substantial commercial operation on Dog Bar Road Thursday morning. The deputies were following up on a complaint that there was a large grow near a school bus stop close to Taylor Crossing Road, said Sheriff’s Sgt. Ray Kress. When they arrived at the residence in the 18000 block, approximately a dozen subjects fled into the house, out the back door, around the house and then back inside, Kress said. “We did not chase them,” he said. “They were finally corralled in …