One of the major waterfowl refuges on the Central Flyway, the 7,677-acre refuge is a winter haven for a million ducks and 80,000 geese. Once known as Tierra Blanca Water Conservation Project, the lake now holds very little water but refuge about 12 miles west continues to draw visitors on its interpretive walking trail and 4.5-mile auto interpretive trail. Activities include picnicking, sightseeing, birding, nature study, photography, and campsites with tables, grills; no water or electricity. Refuge headquarters 3 miles south of Umbarger on F.M. 168.