in its heyday, moundville was the larnlest city north of meks keen contains the remains of about 30 flat topped pyramidal mounds. we are standing at mound b. it contains about 112,000 cubic yards of dirt. and this would have been where the structure for the highest-ranking ruler of the highest ranking plan would have been. originally, they thought it was built by one basket load of dirt at a time. recent research indicates that the base of the mound and possibly the size of them were then filled in with clay. this could give a lot more stability to the structure as they were building it. after the mound was built, it would be capped over so if you sliced into the mound, it would resemble a layer cake. >> the c-span cities tour, working with our cable affili e affiliates and visiting cities across the country. >> 12 new areas of duplication, overlap and in federal programs. it provides 59 new opportunities for cost savings. officials from the irs, defense department and centers for med carr and medicaid services testified at a house oversight