L'Ecole No. 41 Sémillon Columbia Valley is a classic white wine from one of Washington State's most celebrated wineries, offered as a case of 12 bottles at 750mL each. L'Ecole No. 41, based in Lowden, Washington, has been producing Sémillon since their inaugural 1983 vintage and is widely regarded as a leader in this varietal in the Pacific Northwest.

This Sémillon-based blend is expressive and bright, featuring aromas of honeysuckle, lemon zest, and melon. On the palate, flavors of white peach, lemon curd, and a hint of fig are supported by a rich, oily texture and a clean, refreshing finish. The Columbia Valley bottling is typically composed of approximately 88% Sémillon and 12% Sauvignon Blanc, with the Sauvignon Blanc addition enhancing the wine's aromatic complexity and acidity. The wine is sourced from prestigious vineyards including Seven Hills, Rosebud, Stillwater Creek, and Klipsun. Alcohol content is approximately 13.5%.

Styled in the tradition of dry white Bordeaux, this wine has earned consistent acclaim from major critics including 90–91 point scores from Wine Enthusiast, James Suckling, and Owen Bargreen. It is known for its ability to age gracefully, developing notes of honey, toasted nuts, and beeswax over time.