Big Walnut Creek

About

Big Walnut Creek, Ohio — 2023 Trail, 1800s Frontier, 1840s-1880s Logging, 1990s-2010s Big Walnut Trail 50-mi Sunbury. The story of Big Walnut Creek begins with its descent. Rising near Mount Gilead at about 1,180 feet, the creek runs south through Morrow, Delaware, and Franklin counties before joining the Scioto River near Lockbourne at roughly 665 feet — a drop of nearly 500 feet along its 74-mile course. USGS gauge 03228500 has long measured that flow, averaging 218 CFS, with an optimal boating range of 110 to 325 CFS on water rated Class I.

Long before gauges and trails, the creek flowed through the ancestral territory of the Wyandot (Huron), Shawnee, Delaware (Lenape), and Miami in central and southern Ohio, with the Ottawa (Odawa) in the state's northwest. It served as a primary travel corridor, hunting ground, and gathering place. The Shawnee, the Wyandotte Nation, the Delaware Tribe, the Miami Tribe of Oklahoma, and other tribal nations maintain cultural connections to the land. The 1795 Treaty of Greenville, the 1817 Treaty of the Maumee Rapids, and the 1818 Treaty of St. Mary's established the framework that led to the 1830 Indian Removal Act.

The first comprehensive look at the creek's hydrology came with the 1869 USGS Ohio Survey, followed by USGS gauging-station work across the 1880s through the 1910s and Ohio Division of Conservation streamflow surveys in the 1910s through 1930s. Later, 1950s–1970s Ohio Water Pollution Control Board studies and 1972–2000 Clean Water Act assessments confronted more than a century of accumulated impacts, and the 2000–2024 Ohio EPA Total Maximum Daily Load program became the major modern outcome of that record.

Between survey and recovery came the timber years. Big Walnut Creek was logged from the 1840s through the 1920s, feeding the 1850–1910 Ohio hardwood industry built on maple, oak, ash, and beech — the state's signature timber. The creek's cut supplied the 1860–1910 Ohio & Erie and Miami & Erie canal shipping and the 1865–1920s Cincinnati and Cleveland lumber trade. County sawmills operating from 1855 to 1910, logging drives from 1870 to 1910, and the 1875–1920s barrel-stave and furniture industries were the major operators. The 1910 exhaustion of old-growth stands, the 1915 start of state forestry conservation, and the 1920s creation of Ohio state forests ended large-scale logging.

Recovery defines the creek's recent decades. Since 2010, the Ohio EPA, working with Big Walnut Creek Watershed partnerships and local Soil & Water Conservation Districts, has addressed a century of logging, agricultural, and industrial pressure. Streambank stabilization from 2015 to 2024, native fish restocking from 2017 to 2024 — including smallmouth bass and saugeye — and 2020–2024 Ohio Scenic Rivers program additions marked the major outcomes. Then, in 2023, the longest completed section of the Big Walnut Trail opened. Reaching out from Hoover, it carries walkers and cyclists through Columbus and its eastern suburbs, linking Westerville, Gahanna, and Whitehall into a single green corridor tracing the creek's course. A frontier stream, nearly 500 feet lower at its mouth than its source, now organizes the recreational and economic life of the towns gathered along it.