Martinez & Martinez Winery is dedicated to the production of high quality wine from high quality grapes, focusing on Cabernet Sauvignon from the Horse Heaven Hills. Currently the winery uses two vineyards from the AVA. The Martinez Vineyard Estate described above and Alder Ridge Vineyard located just a few miles from their estate location on an extremely steep Southern facing slope, overlooking the Columbia River. The River has a magnificent effect on this vineyard by moderating the extreme summer and winter temperatures. This vineyard produces great fruit and is of superior quality due to its unique growing area.