Timonium Creek Falls is a 75-foot waterfall on Timonium Creek in Lewis County, Washington, in the Cascades region. It lies about 30.6 miles east of Morton and roughly 56 miles west of Yakima as the crow flies.
At 75 feet it is on the modest side for Washington, where the typical waterfall with a recorded height stands around 82 feet; it ranks 498th of 941. By form it is a cascade, descending over a series of rock steps rather than in a single drop.
The Cascades are a high volcanic range of snow-capped peaks, deep glacial valleys and dense conifer forest of Douglas fir, western hemlock and true firs, with abundant rain and snow on the western slopes. Basalt cliffs and lava flows give the region one of the highest concentrations of waterfalls in the country. Timonium Creek carries 2 recorded waterfalls, and Timonium Creek Falls is the tallest of them.
Lewis County holds 180 recorded waterfalls, and several are close by. Lower Yozoo Creek Falls, a 45-foot horsetail waterfall, is under a mile away. Upper Yozoo Creek Falls, a 30-foot veiling cascade waterfall, is under a mile away. Grouse Creek Falls, a 35-foot slide cascade waterfall, is under a mile away.
Timonium Creek Falls is located at 46.4335° N, 121.6572° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The creek name is confirmed against the federal Geographic Names Information System. The exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this waterfall yet.