The eastern boundary of the Louisiana purchase was the Mississippi River, from its source to the 31st parallel, though the source of the Mississippi was, at the time, unknown. The eastern boundary below the 31st parallel was unclear.
An A-frame pool ladder is a great above ground pool ladder designed for stability and safety that is perfect for above ground swimming pools Pool owners with small children can provide an extra layer of safety with the fold up mechanism or locking gate.
Recommended installation method for: 1  Pool Rails, Pool Ladders & Pool Slides with 1.9â OD mounting posts. 2  Can be used to surface-mount pool ladders and handrails to concrete or wood pool deck surfaces, or to (sturdy) steps such as those used with above-ground spas.