Big Boggy National Wildlife Refuge is part of the Texas Mid-coast National Wildlife Refuge Complex and consists of flat coastal prairies, salt marshes, and two large saltwater lakes. Established to provide habitat for migratroy waterfowl and other bird species, Big Boggy includes Dressing Point Island in East Matagorda Bay, a major rookery for colonial nesting birds on the Texas coast. The refuge is the smallest in the Texas Midcoast Refuges Complex. Its 4,526 acres may be small but holds an impressive number of waterfowl - up to 55,000 geese and 15,000 ducks annually. The refuge serves as a salt marsh sanctuary and is only open to the public for waterfowl hunting.

Big Boggy National Wildlife Refuge serves as a salt marsh sanctuary and is only open to the public for waterfowl hunting. Additional wildlife-dependent recreation opportunities are available at nearby Brazoria and San Bernard National Wildlife Refuges which are part of the Texas Mid-coast National Wildlife Refuge Complex.

The Refuge Headquarters, located off of FM 2004, is where the business of the refuge is conducted. Refuge brochures and information, as well as access to the Otter Slough boardwalk, are available at the headquarters.

The refuge borders Matagorda Bay, about seven miles south of Wadsworth and 20 miles from Bay City. From Brazoria, Texas, drive west on FM 521 to Chinquapin Road. Turn left (south) and drive by Big Boggy NWR to Chinquapin Landing.