Celilo Vineyards was planted on Underwood Mountain in 1972, most vines are 40 years old. The deep-rooted vines bring a mineral characteristic to Celilo's wines along with higher acidity. At an elevation 800 to 1100 feet, the vineyard is considered sub-alpine, sitting on a cusp of wetter maritime weather to the west and the desert to the east. Annual rainfall of 50 inches percolates into the vineyard's grainy "buckshot" sized volcanic loam. Soils from the extinct volcano cone of Underwood Mountain can be as deep as 45 feet and retain moisture well, allowing Celilo Vineyards to survive without irrigation. Due to the soil, the flavors that come through the grapes is "minerally" and intense. Today Celilo Vineyards encompasses 74 acres of wine grapes, growing: Gewurztraminer, Chardonnay, Pinot Gris, Pinot Noir, Gruner Veltliner, Lemberger, Muller-Thurgau.