Ahtanum brand YCR 1 cv is an aroma-type cultivar bred by Yakima Chief Ranches. It is used for its aromatic properties and moderate bittering. It has unique aromas that include citrus (grapefruit), earthy, and floral. The variety is named after the location where Charles Carpenter established the first hop farm in the Yakima Valley in 1869. Typical alpha acids range from 5%–7%, and beta acids range from 5–6%. Typical total oils (Mls. per 100 grams dried hops) 0.8–1.2.