The last of the Lodi-area sub-appellations, Sloughhouse is located in the most north eastern portion of the region. Named for a famed stage coach stop and restaurant, the name Sloughhouse has been used in the area since the 1850. This sub-appellation is the warmest and wettest micro-climate in the area.
The AVA is drained by the Cosumnes River and its tributaries Deer Creek and Laguna Creek that cut through plains and rolling hills. The soils as a result are alluvial and of low fertility as well as old. The are formed from a mixture of rocks including granites from the Sierra Nevadas Mountains.
The climate of Sloughhouse is warmer and wetter than the other Lodi appellations. The elevations in this area are the highest in the region and because they are next to the relatively high table lands from Alta Mesa, Sloughhouse does not get the cool air from the Pacific that the other nearby viticultural areas enjoys. The additional precipitation in the region is due to orographic or relief rain. This sort of rain occurs as clouds rise in elevation following landforms such as hills and mountain, cooling the water vapor and forming rain.
Like several of the Lodi appellations there are no wineries in Sloughhouse but it is home to several vineyards that provide fruit for wineries outside the area. Additionally, there are currently no wines that are labeled using the Sloughhouse designation.