Hales Bar Dam

The Marion Memorial Bridge was a 4-span metal truss bridge that formerly carried U.S. Route 41 in Marion County, Tennessee over the Tennessee River and Nickajack Lake. It was built in 1929. The main span was 369 feet (112 m), and the bridge had a total length of 1,870 feet (570 m). The bridge was listed on the National Register of Historic Places on October 25, 2007. The bridge featured an unusual truss configuration that is a hybrid of the Parker and K-Truss configurations. The bridge was replaced by a new concrete and box girder span that opened in November 2014, slightly delayed from its target completion date of August 2013 by conditions encountered in the construction of the replacement bridge footings. Since the construction of the new bridge's footings involved blasting within 30 feet (9.1 m) of the Marion Memorial Bridge, state officials closed the bridge to vehicle and pedestrian traffic on January 9, 2012, with traffic being re-routed to the Interstate 24 bridge south of the span. The metal trusses of the bridge were demolished and removed by June 2015. The bridge was delisted from the National Register in June 2016. Some people in the community expressed the desire to preserve the bridge in some way. Tennessee Department of Transportation officials said the bridge was costly to maintain, citing as an example the repainting cost of $1 million.This bridge was built before the construction Nickajack Dam, a few miles downriver. The higher mean pool of the new reservoir necessitated raising the bridge from its original height. A bridge of similar design in Meigs County, Tennessee, that carried Tennessee Highway 58 across the Hiwassee River was imploded in November 2007, along with another similar bridge that carried Highway 58 over the Tennessee River in Roane County.

The Tennessee River Gorge is a 26-mile (42 km) canyon formed by the Tennessee River known locally as Cash Canyon. It is the fourth largest river gorge in the Eastern United States. The gorge is cut into the Cumberland Plateau as the river winds its way into Alabama from Tennessee. The Tennessee River Gorge was also known as Walden Gorge. Walden Ridge originally extended across the present path of the Tennessee River at the gorge to Sand Mountain.

Haletown (also known as Guild) is an unincorporated community in Marion County, Tennessee, United States. It is part of the Chattanooga, TN–GA Metropolitan Statistical Area. Haletown is probably best known as the former location of Hales Bar Dam, a major hydroelectric project completed in 1913 by the former Tennessee Electric Power Company (TEPCO) and as a prominent location along the Tennessee River at Nickajack Lake.

Mineral Springs is an unincorporated community in Marion County, Tennessee, United States.

Aetna is an unincorporated community in Marion County, Tennessee, United States. It lies at an elevation of 1696 feet (517 m). Aetna was named after the Sicilian volcano, Mount Etna.

Whiteside (formerly Aetna, Etna and Running Water) is an unincorporated community in Marion County, Tennessee. It was originally settled as a Cherokee town in the late eighteenth century. After Indian Removal, European-American settlers moved in and later named it after James Anderson Whiteside (1803–1861), attorney, Chattanooga railroad promoter and land investor. It lies at an elevation of 807 feet (246 m). Tennessee State Route 134 passes by Whiteside, which is located between Chattanooga and Haletown, just north of the Tennessee-Georgia state line. Interstate 24 also passes through the community.

Sequatchie Valley is a relatively long and narrow valley in the U.S. state of Tennessee and, in some definitions, Alabama. It is generally considered to be part of the Cumberland Plateau region of the Appalachian Mountains; it was probably formed by erosion of a compression anticline, rather than rifting process as had been formerly theorized. The Sequatchie River drains the valley in Tennessee, flowing south to southwest from the southern part of Cumberland County, Tennessee to the Tennessee River near the Alabama border. Geologically, the Sequatchie Valley continues south of the Tennessee River into central Alabama. The Tennessee River flows through the Alabama portion of the valley to the vicinity of Guntersville, Alabama. The valley continues south of Guntersville, where it is called Browns Valley, drained by Browns Creek (Thornbury 1965:148). Although this whole valley is geologically the same, the name Sequatchie is commonly used only for the Tennessee portion of the valley, through which the Sequatchie River flows. A distinctive feature of the Sequatchie Valley is its straightness. From its northern end to its geological southern end at Browns Valley, the valley is almost perfectly straight. It is over 150 miles (240 km) long in the geologic sense and about 65 miles (105 km) long as the valley of the Sequatchie River. Its width is about 3–5 miles (5–8 km). The valley is bounded on either side by escarpments of the Cumberland Plateau. The portion of the plateau east of the valley is relatively narrow and known as Walden Ridge in Tennessee. To the west the plateau is simply called the Cumberland Plateau. In Bledsoe County, Tennessee a section of the west side escarpment is called Little Mountain, which also marks the Tennessee Valley Divide. In Alabama the plateau to the east of the valley is called Sand Mountain, while that to the west is Gunters Mountain. At its northern end, the Sequatchie Valley is marked by a more mountainous portion of the Cumberland Plateau known as the Crab Orchard Mountains. Between the main Crab Orchard Mountains and the Sequatchie Valley there is another valley, called Grassy Cove, located several miles north of Sequatchie Valley. Grassy Cove is a karst valley which, through underground erosion, should eventually become part of Sequatchie Valley (Thornbury 1965:149). Another, smaller karst valley, Bat Town Cove, is forming northeast of Grassy Cove, which may also grow and eventually become part of Sequatchie Valley. The Tennessee section of Sequatchie Valley contains the towns of Pikeville, Dunlap, Whitwell, Jasper, and, on the Tennessee River, South Pittsburg. Towns in the Alabama portion of the geologic valley include Bridgeport, Scottsboro, Guntersville, and, around the southern end, Blountsville.

Sequatchie is an unincorporated community in Marion County, Tennessee, United States. Its ZIP code is 37374. The community lies in the southwestern Sequatchie Valley at the base of the Cumberland Plateau. The Little Sequatchie River passes to the north and east of the community. Valley View Road connects Sequatchie with Whitwell to the northeast and Jasper to the southwest.

Nickajack Lake is the reservoir created by Nickajack Dam as part of the Tennessee Valley Authority. The lake stretches from Nickajack Dam to Chickamauga Dam, passing through the city of Chattanooga. The Tennessee River Gorge, commonly referred to as the "Grand Canyon of Tennessee", is also part of Nickajack Lake. Full pool for Nickajack Lake is approximately 633.5 feet (193.1 m) above sea level, and remains consistent during the course of the year, unlike nearby Chickamauga Lake. The world record for freshwater drum was caught from Nickajack Lake in 1972 by Benny Hull, and weighed in at 54 pounds 8 ounces (24.7 kg). A lake sturgeon was caught in Nickajack Lake in 2011. This was the first sighting of one in the lake since they left the area in the 1960s.

Nickajack Dam is a hydroelectric dam in Marion County in the U.S. state of Tennessee. It is one of nine dams on the Tennessee River owned and operated by the Tennessee Valley Authority, which built the dam in the mid-1960s to replace the outdated Hales Bar Dam 6 miles (9.7 km) upstream. The dam impounds the 10,370-acre (4,200 ha) Nickajack Lake and feeds into Guntersville Lake. Nickajack Dam is named for a Cherokee village once located just upstream from the dam (the site is now submerged). The village was the namesake for Nickajack Cave, which was partially flooded by the reservoir.

McKendree Methodist Episcopal Church is a historic church building at 503 Betsy Pack Drive in Jasper, Tennessee, that was formerly the home of the McKendree United Methodist Church and is now home to Faith Baptist Church.It was built in 1875 and added to the National Register of Historic Places in 1978.McKendree United Methodist Church is now located at 106 Highway 150 in Jasper.

WTNW (820 AM, "Music Radio 820") was a radio station broadcasting a variety hits format, licensed to Jasper, Tennessee, United States. The station originally signed-on the air in 1986 playing an adult contemporary format as WAPO, taking the former call-letters of what is now WGOW-AM in Chattanooga. The station switched to an all gospel format around 1990, before changing owners and call-letters in 1993. The station featured weekday programming, the John & Heidi Show mornings with hosts John and Heidi Small from 6:00am to 10:00am Central Time. Maddy Jones and Maddy in the Midday from 10:00am until 2:00pm, and The B-Side With Joshua Wayne afternoons from 2:00pm until 6:00pm. Logan Carmichael covered news and local events and could also be heard on weekends, and the station featured its own locally produced and hosted bluegrass show, Cold Mountain Bluegrass, hosted by Kyle Holland on Saturday mornings from 8:00am–10:00am Central Time. Sundays were dedicated to a variety of Southern gospel and various religious paid programming. WTNW was also the flagship station for Marion County High School Warriors football broadcasts each fall. WTNW was owned by Shelton Broadcasting System.On Saturday, December 31, 2016, a fire destroyed the historic house at 4306 Main Street in Jasper which housed the transmitting equipment, offices, and studios of WTNW.The station filed for authorization with the FCC to go silent for an undetermined time, which was granted on January 30, 2017. The FCC cancelled WTNW's license on March 12, 2019, due to the station having been silent since January 1, 2017.