Question: Proxy Falls, also known as Lower Proxy Falls, is a cascade and plunge waterfall from a collection of springs on the shoulder of North Sister, the Three Sisters are a complex volcano of three volcanic peaks of the Cascade Volcanic Arc and the Cascade Range in which U.S. state?
Sentence (from "Three Sisters (Oregon)"): Each exceeding 10000 ft in elevation, they are the third-, fourth-, and fifth-highest peaks in the state of Oregon, and are located in the Three Sisters Wilderness, about 10 mi south of the nearest town of Sisters.
Relevant evidence: No