The falls occur as Denny Creek emerges from a narrow canyon, spreading across a broad granite shelf and cascading 29 feet in undulating sheets of water. At the base of the cascade the creek veils out further, sometimes splitting into as many as three distinct channels, and plunging 142 feet into a narrower and deeper section of the canyon than above.

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Jasper (Wikipedia) Jasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases, is an opaque, impure variety of silica, usually red, yellow, brown or green in color; and rarely blue. The common red color is due to iron(III) inclusions. Jasper breaks with a smooth surface and is used for ornamentation or as a gemstone. It can be highly polished and is used for items such as vases, seals, and snuff boxes. The specific gravity of jasper is typically 2.5 to 2.9. Jaspillite is a banded-iron-formation rock that often has distinctive bands of jasper.

Keekwulee Falls (waterfallsnorthwest.com) Denny Creek sports a number of waterfalls, some quite a bit more noteworthy and conspicuous than others. Keekwulee is the most significant of the bunch and is one of the prime attractions along the Melakwa Lakes Trail near Snoqualmie Pass.