Tahkenitch Lake Tournament
- Ramp: Tahkenitch Landing Boat Ramp
- Date: April 1st, 2018
- Meeting: 30 min before safe light
- Blast Off: At safe light
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Tahkenitch Lake at 2,118 acres, is one of the larger lakes along the coast of the U.S. state of Oregon. Fed by runoff from a basin of about 34 square miles (88 km2), it lies east of U.S. Route 101 in Douglas County between Florence and Reedsport. Its name comes from a Lower Umpqua (Siuslaw) placename meaning "having arms running out like a crab".
Tahkenitch Lake, like its immediate neighbor to the north, Siltcoos Lake, was formed during and after the Pleistocene when melting glaciers caused a rise in sea level that drowned the lower reaches of Oregon's coastal rivers. Big rivers like the Umpqua, south of Tahkenitch Lake, formed large estuaries. The mouths of smaller streams filled with sand and sediment, which eventually created dunes. Tahkenitch, Siltcoos, Woahink, and other nearby lakes formed behind these dunes. Many centuries later, the lakes remain at elevations somewhat above the lower sea of the early 21st-century. The surface of Tahkenitch is about 20 feet (6 m) above sea level.