Soo Locks Menu. A birdseye view of the Soo Locks facility from the lower approach. The St. Marys River is the only water connection between Lake Superior and the other Great Lakes. Near the upper end of the river the water drops 21 feet over hard sandstone in a short Â¾ mile long stretch.
The bridge exercise is a great way to isolate and strengthen the gluteus (butt) muscles and hamstrings (back of the thigh). If you do this exercise correctly, you also will find that it is a good core stability and strength exercise that targets the abdominal muscles as well as the muscles of lower back and hip.
The bridge exercise is a great way to isolate and strengthen the gluteus (butt) muscles and hamstrings (back of the thigh). If you do this exercise correctly, you also will find that it is a good core stability and strength exercise that targets the abdominal muscles as well as the muscles of lower back and hip.