It continues past Beekman's main park to the hamlet of Beekman, then is impounded into a new, unnamed lake near Green Haven Correctional Facility. Shortly afterwards it crosses into the town of East Fishkill. At the town line, south of the hamlet of Stormville, it receives the Whaley Lake outlet brook. It flows westerly through more woods and swamps to where it receives the Sylvan Lake outlet brook just east of the Taconic State Parkway. After crossing underneath, it parallels the parkway south on its west side, then turns west again and makes a northward bend around another hill to once again parallel County Route 9, now Beekman Road, for a short distance, then follows the hill's base to the south. From here it meanders under the Metro-North Beacon Line south of Hopewell Junction where it receives Whortlekill Creek. It passes the Hopewell Recreation Center and then flows under NY 376.