Abstract: A wheeled dolly that can be readily removed from and attached to a portable shelter in an upright position by a single person. One person may use the wheeled dolly to easily lift and transport the portable shelter, wherein the portable shelter may be a canopy, tent, pavilion, awning, or the like. The dolly may comprise a pair of wheels selectively connected by an axle beam, and a pair of mounting elements having first portions and second portions and extending laterally outward from the third segment of the axle beam, wherein the mounting elements are operably configured to be selectively and securely inserted into a pair of receiver holes located on the portable shelter.