Unique to Cromlin are a series of tall piers that extend out over the silt. These 20-foot tall structures allow giant silt skimmers to unload their goods and personnel quickly and easily. The timbers used to construct the piers come from the great trees of the Crescent Forest. The wood's natural tenacity keeps the piers standing in the face of frequent silt storms. Most of the piers are owned by private citizens who charge two silver pieces per day to harbor a skimmer. At the base of each pier is a small shack with a simple cot, table, and chair. Someone is always present to collect berthing fees, no matter when a skimmer arrives. At any given time there are up to 6 skimmers docked here. These independent vessels serve smaller trading interests, transporting goods to the piers located along the north and south shores of the silt estuary. Most of these skimmers are relatively small, with crews of four plus their captains.