Charles Heintz Vineyard has been one of the defining sites in DuMOL’s Chardonnay program for more than two decades. Planted in 1982 on an 800-foot Sonoma Coast ridgeline, the vineyard sits directly in the path of coastal fog, with Goldridge sandy loam, clay, and shallow sandstone creating striking differences from one side of the site to the other. DuMOL draws from both, using the higher-acid, savory character of the sandstone soils together with the broader, richer fruit produced by the clay to build Isobel as a complete expression of this remarkable old vineyard. The 2024 vintage brought more generosity than the preceding year. DuMOL describes a warm growing season and a lower-yielding crop that produced a deeply textured wine with richer fruit and slightly softer acidity than 2023. The fruit was harvested September 13 through 16 from 42-year-old Clone 4 Chardonnay vines, then fermented with native yeasts and aged for 11 months in 320-liter French oak barrels, only 25% new. Four additional months in tank allowed the wine to settle and integrate before bottling unfiltered. The vineyard’s signature remains unmistakable in the glass. Lily, thyme and lemongrass lead into tangerine, nectarine and pineapple, while the palate combines deep fruit concentration with tangy acidity and the mineral-tropical character DuMOL associates with Heintz. The texture grows broad and generous, then stretches into a long, oily citrus finish. Only 750 cases were produced, and DuMOL recommends drinking the 2024 from 2026 through 2036, giving this already inviting Chardonnay plenty of room to develop further.