A support structure, primarily for a trash or lawn bag is characterized by two identical bracing supports that are positioned to support the bag when staked into the ground. The bracing supports include a lower leg and an upper leg. Each leg is formed with a specific cross-sectional shape that allows the nesting and close coupling of the lower leg to the upper leg. An elbow or right angle member is releasably attached to the lower leg to fix the depth of the lower leg within the ground and trap the bag between the ground and the elbow member. Slidably received over the upper leg is a retainer clip having a right angle support and an opening having the same outer configuration as the cross-sectional shape of the legs such that the retainer clip may freely slide along the length of the upper leg member. Additionally, the clip includes an angled flange cooperating with the opening to provide mechanical retention of the clip against the leg when the height of the clip is set and the bag is held tight against the right angle support by bag tension.
