There are really two flows here....Left Ghost and Right Ghost. In early season they are totally separate pieces of ice but my mid winter it is usually all blended together as one big flow. There are a lot of different lines ranging from WI3 to WI5. The main line up each flow is usually in WI4 condition.
It is more than a rope length from the actual creek to the top. Most people opt to scramble up to a flat bench/cave feature in the middle and then climb either to the right or left. When in fat there is definitely room or 3 or 4 ropes up at once.
Park at the Deer Creek Trailhead just before Deer Creek CG. Hike up the trail for about 2.5 miles where you cross a major drainage and see the climb Slogger just below the trail. From here the trail switchbacks up a little and then you can start seeing the Ghosts down across the creek. Continue following the trail for another 5-10 minutes until you "the clearing" as described in the Winter Dance book. Just a 100 feet before "the clearing" you want to head down the gully to the creek. It is steep but it goes. Once at the creek follow it downstream for 100 yards to the base of the climb. Don't be tempted to follow the creek downstream from here. It doesn't go as there are several drop offs and pools that don't often freeze over. Instead slog back up the hill to the trail and follow it back out.
Screws, good trees for anchors at the top.