Wine history: The agricultural history of this area near Salem dates back to the mid-1850s, though it wasn’t until the 1970s that winemakers started to discover the area as having ideal growing conditions for high-quality wine grapes. It was around this time that a few modern pioneers, including Don Byard of Hidden Springs, planted a patchwork of vineyards in the Eola-Amity Hills. Soon after, other pioneers followed suit and today this area produces world-class, handcrafted cool-climate varietals. The appellation became official in 2006.
Climate: The Eola-Amity Hills region enjoys a temperate climate of warm summers and mild winters, and 40 inches of annual rain, most of which falls outside of the growing season. Average maximum temperatures are 62 degrees Fahrenheit in April and 83 degrees Fahrenheit in July, which contribute to the ideal conditions for the cool-climate grape varieties that dominate the Eola-Amity Hills. The climate in this region is greatly influenced by its position due east of the Van Duzer Corridor, which provides a break in the coast range that allows cool Pacific Ocean air to flow through. This decreases temperatures in the region dramatically, especially during late summer afternoons, helping to keep grape acids firm.
Soil: The soils in the Eola-Amity Hills predominantly contain volcanic basalt from ancient lava flows as well as marine sedimentary rocks and alluvial deposits at the lower elevations of the ridge. This combination results in a relatively shallow, rocky set of well-drained soils, which typically produce small grapes with great concentration.
Topography: The Eola Hills, and its northern extension, the Amity Hills, are part of a North Willamette Valley hill chain that developed out of intense volcanic activity and the collision of the Pacific and North American plates. The main ridge of the Eola Hills runs north-south and has numerous lateral ridges on both sides that run east-west. The majority of the region’s vineyard sites exist at elevations between 250 to 700 feet.