Before Idaho wine had a defined voice, it had a champion.
At the center of that transformation was Martha Cunningham—the driving force behind the creation of the Eagle Foothills AVA. Long before real estate influencers and developers began marketing the region as wine country—sometimes stretching the narrative as far as Sunnyslope, which is not its own AVA but part of the larger Snake River Valley AVA—it was Cunningham doing the foundational work to make Eagle, Idaho wine credible, recognized, and protected.
Building an AVA from the Ground Up
An American Viticultural Area (AVA) is more than a label. It is a federally recognized designation proving that a region’s climate, soil, and geography produce distinguishable characteristics in the wine.
When Cunningham began this process, Idaho was not yet taken seriously on a national wine stage. Establishing the Eagle Foothills AVA—one of the sub-AVAs within the Snake River Valley—meant proving, scientifically, that this region was not only viable, but unique.
That required data, not just belief.
Through climate records, soil analysis, elevation mapping, and historical research, Cunningham helped compile the petition that ultimately led to federal approval. It was detailed, technical work—often overlooked, but absolutely essential.
The Reluctant Architect
Cunningham did not pursue recognition or status. Her role emerged out of necessity.
As co-owner of 3 Horse Ranch Vineyards, she saw firsthand that the land had a story to tell—but no formal identity to support it. So she stepped in to write it.
Working with experts across climatology, geology, and viticulture, she translated what growers already knew into a format regulators could approve. Just as importantly, she unified local vineyards around a shared goal, aligning a community that could have easily remained fragmented.
Defining a Region
Refined areas like the Eagle Foothills AVA are defined by subtle but powerful environmental factors:
- Long summer days balanced by cooling evening shade
- Varied elevations that slow ripening and preserve acidity
- Slope orientations that control sun exposure
- Natural air drainage that reduces frost risk
Individually, these factors might seem minor. Together, they create wines with balance, structure, and consistency—qualities that distinguish the region in a competitive global market.
Why Recognition Matters
Today, “wine country” is a selling point. It appears in real estate listings, tourism campaigns, and social media posts. But that visibility did not happen by accident.
It exists because the Eagle Foothills AVA exists.
And that AVA exists because Martha Cunningham did the work—years of it—to define, document, and legitimize the region.
Without that foundation, there would be no formal story to tell, no boundary to reference, and no credibility behind the claim.
A Legacy That Shouldn’t Be Overlooked
As the region grows and gains attention, it is easy for the origin story to get diluted. Marketing moves faster than memory.
But the truth is simple: Idaho’s wine identity did not emerge organically in the public eye. It was built—deliberately, carefully, and scientifically—by someone willing to do the hard, unglamorous work behind the scenes.
Martha Cunningham didn’t just help create an AVA.
She gave Eagle Foothills wine a name, a place, and a future.
