Gasconade Formation

Meramec State Park is a public recreation area located near Sullivan, Missouri, about 60 miles from St. Louis, along the Meramec River. The park has diverse ecosystems such as hardwood forests and glades. There are over 40 caves located throughout the park, the bedrock is dolomite. The most famous is Fisher Cave, located near the campgrounds. The park borders the Meramec Conservation Area.

Hamilton Creek is a stream in Crawford and Washington counties in the U.S. state of Missouri. It is a tributary of the Meramec River. The stream headwaters arise just west of Missouri Route 155 and about one mile north of Pea Ridge and the Pea Ridge Mine (at 38°08′19″N 91°02′39″W). The stream flows to the northwest to enter the Meramec in eastern Crawford County just west of the Washington-Crawford county line (at 38°10′44″N 91°05′49″W).Hamilton Creek was formerly called Hamilton Branch; the namesake of the creek is unknown.

Meramec Caverns is the collective name for a 4.6-mile (7.4 km) cavern system in the Ozarks, near Stanton, Missouri. The caverns were formed from the erosion of large limestone deposits over millions of years. Pre-Columbian Native American artifacts have been found in the caverns. Currently the cavern system is a tourist attraction, with more than fifty billboards along Interstate 44 and is considered one of the primary attractions along former U.S. Highway 66. Meramec Caverns is the most-visited cave in Missouri with some 150,000 visitors annually.

Greens Creek is a stream in Crawford and Washington counties in the U.S. state of Missouri. It is a tributary of the Meramec River. The stream headwaters are at 38°06′13″N 91°03′27″W and the confluence with the Meramec is at 38°09′08″N 91°06′36″W.Greens Creek, formerly called Green's Branch, was named after Davey Green, a pioneer prospector.

Oak Grove Village is a village in Franklin County, Missouri, United States. The population was 509 at the 2010 census.

Maj. Gen. William S. Harney Summer Home, also known as the Harney Mansion, is a historic home located at Sullivan, Crawford County, Missouri. It was built in 1856, and is a 1 3/4-story, eclectic dwelling constructed of native brown sandstone. The house has a rear wing added between 1869 and 1872. It was the summer home of William S. Harney, who purchased it in 1869. Harney was known among the Sioux as "Woman Killer" due to his actions (known as the Harney Massacre) at an Indian village in 1855 at Blue Water Creek. It is operated as a historic house museum.: 2–4 It was listed on the National Register of Historic Places in 1984.

Sullivan is a city that straddles the border of Franklin and Crawford counties in the U.S. state of Missouri. The population was 6,906 at the 2020 census.

Meramec Township is an inactive township in Franklin County, in the U.S. state of Missouri.Meramec Township was established in 1819, taking its name from the Meramec River.

Crows Creek is a stream in Crawford and Washington counties in the U.S. state of Missouri. It is a tributary of the Meramec River. The stream headwaters are in western Washington County at 38°06′31″N 91°04′47″W and its confluence with the Meramec in eastern Crawford County is at 38°08′23″N 91°08′16″W.Crows Creek most likely has the name of a pioneer citizen.

Sullivan Regional Airport (ICAO: KUUV, FAA LID: UUV) is a public use airport in Franklin County, Missouri, United States. It is owned by the city of Sullivan and located one nautical mile (2 km) north of its central business district. This airport is included in the National Plan of Integrated Airport Systems, which categorized it as a general aviation facility.Although many U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned UUV by the FAA but has no designation from the IATA.

KTUI (1560 AM) is a daytime only radio station licensed to Sullivan, Missouri, United States. The station airs a Talk radio format and is currently owned by Dean Brueseke and Robert Scott, through licensee Meramec Area Broadcasting LLC.

KTUI-FM 102.1 FM is a radio station in Sullivan, Missouri and licensed to Meramec Area Broadcasting LLC.KTUI-FM and sister station KTUI were purchased by Fidelity Broadcasting in 1997. On March 9, 2008, KTUI 100.9 FM switched frequencies to 102.1 FM. The radio stations' coverage areas in Missouri reach from St. James on the west to Pacific on the east, and New Haven on the north to Potosi on the south, covering several hundred square miles around the state. The FM station plays a mix of new and old country music, while the AM station enlightens listeners with talk radio.Effective March 31, 2020, Fidelity Broadcasting sold KTUI-FM and KTUI to Meramec Area Broadcasting LLC for $200,000. KTUI-FM is a member of the St. Louis Cardinals Radio Network.