Since 2015 we have been working on a large-scale project to map the vineyards of California. To date, we have published seven regional Napa Valley maps and have several more in the works, including a five-map set of Sonoma Valley and map of the Santa Lucia Highlands, both of which are nearly finished. Although travel restrictions related to COVID-19 have delayed final, on-the-ground checks that are such an essential part of the quality control process, we are eager to share our work and show you a little bit of what we have been up to through this series of excerpts that kicks off with a look at Pagani Ranch.