This is the other large gate leading into and out of the city. In it's dimensions and the diligence of the guards it resembles the Highway Gate.
The Cargo Gate is the busiest of the Free City's portals, bustling all hours of the day and night with freight wagons, pack trains, porters and carts of goods from the wharf to the city and vice versa. Every manner of goods brought to the Greyhawk by boat enters the city through the Cargo Gate.
Like the Highway Gate, the cargo Gate remains open both day and night, and is guarded by a double elite patrol of the City Watch, together with the standard gatehouse garrison.
A roster is kept of those passing through and those arriving in the city are asked their business. A Freesword Tax of 3 gp is payable for anyone seeking mercenary work.
Those carrying weapons other than: dagger, dart, sling, staff, staff-sling, club, and knife are required to pay for a license from the Captain General of the Watch, there are no licenses for weapons larger than a two-handed sword. The licenses are not available at the gates, they must be obtained from the Office of the Captain-General in the Grand Citadel.
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Each gate comprises a pair of huge wooden portals, each at least 12 feet high, eight feet wide and one foot thick. The Black, Highway, Garden and Cargo gates are 16 feet high and 24 feet wide.
Each gate is backed by a massive portcullis of iron bars 2 inches thick.
Each gate is enclosed in a small gatehouse consisting of a pair of towers flanking the gate and an enclose area over the gateway. the tower tops and connecting blockhouse feature arrow slots and murder holes for boiling oil.
Gates of Greyhawk