Groundwater is an important component of the ecological functioning of many natural communities and the plants and animals they support that occur in natural areas across our world. However, its importance is often overlooked relative to more visible natural resources such as streams, lakes, soils, and vegetation. Groundwater is part of the water cycle and many of the habitats and their associated species it supports are rare, in decline, or threatened. During this virtual State Natural Area Program meeting, speakers will cover a couple of karst systems to begin a conversation on the role of groundwater in natural area stewardship. This will be followed by examples from state programs of related stewardship projects as well as a discussion by the meeting participants.