Chimney Rock Falls is a waterfall on East Fork Lemah Creek in Kittitas County, Washington, in the North Cascades region, with a total height of about 800 feet. It lies about 22.2 miles east of Tanner and roughly 39 miles east of Sammamish as the crow flies.
At 800 feet it stands in the tallest quarter of Washington’s 941 waterfalls with a recorded height, ranking 40th; the typical Washington waterfall is about 82 feet. The tallest single drop is 150 feet. The water comes down as a tiered waterfall, falling in several distinct steps one after another, combined with a horsetail character. It falls in 5 drops.
The North Cascades are a wilderness of jagged peaks, glaciers and deep, forested valleys of western hemlock, silver fir and Douglas fir, with some of the heaviest snowfall in the country. Meltwater from glaciers and snowfields pours down thousands of feet of cliffs in countless cascades and horsetail falls.
There are 86 recorded waterfalls in Kittitas County. Upper Lemah Valley Falls, a 150-foot tiered horsetail waterfall, is under a mile away. Whinnimic Falls, a 350-foot plunge waterfall, is under a mile away. Middle Lemah Creek Falls, a 107-foot tiered cascade waterfall, is about 1.4 miles away.
Chimney Rock Falls is located at 47.4960° N, 121.2728° 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 position was verified on aerial imagery. Details on trails, parking and access have not been documented for this waterfall yet.