General Structure and Writing Style. The function of a research design is to ensure that the evidence obtained enables you to effectively address the research problem logically and as unambiguously as possible.
ALLEGHENY RIVER HISTORY. Location: A river rising in north-central Pennsylvania and flowing about 523 km (325 mi) northwest into New York then southwest into Pennsylvania again, where it joins the Monongahela River at Pittsburgh to form the Ohio River.
Ohio River. The Ohio River is formed by the confluence of the Allegheny and Monongahela rivers at modern-day Pittsburg, Pennsylvania. It ends approximately 900 miles downstream at Cairo, Illinois, where it flows into the Mississippi River. It received its English name from the Iroquois word, O-Y-O, meaning the great river.