
The Trinity River is a 710-mile-long (1,140 km) river in Texas, and is the longest river with a watershed entirely within the U.S. state of Texas. It rises in extreme northern Texas, a few miles south of the Red River. The headwaters are separated by the high bluffs on the southern side of the Red River.

Benbrook Lake is a reservoir on the Clear Fork of the Trinity River in Tarrant County, Texas, USA. The lake is located approximately 10 miles (16 km) southwest of the center of Fort Worth, where the Clear Fork and the West Fork of the Trinity River join. The lake is impounded by the Benbrook Dam. The lake and dam are owned and operated by the U.S. Army Corps of Engineers, Fort Worth District.
Eagle Mountain Lake is a reservoir in North Texas, formed by the damming the West Fork of the Trinity River. The reservoir sits below Lake Bridgeport reservoir and above Lake Worth reservoir.

Grapevine Lake is an American reservoir located in the North Texas region, approximately 20 mi (32 km) northwest of Dallas and northeast of Fort Worth. It was impounded in 1952 by the US Army Corps of Engineers when they dammed Denton Creek, a tributary of Trinity River.

Johnson Creek is a creek and tributary of the Trinity River watershed in Dallas County and Tarrant County, North Texas.

The Katy Trail is a jogging, walking, inline skating, and bicycling path that runs through the Uptown and Oak Lawn areas of Dallas, Texas (USA), following the path of the old Missouri-Kansas-Texas Railroad, which was known as MKT or the Katy.

Lake Bridgeport, also known as Bridgeport Lake, is a man-made, freshwater reservoir located in Wise and Jack Counties in North Texas. The lake was created by damming the West Fork of the Trinity River and sits upstream from Eagle Mountain Lake. The lake is owned by the Tarrant Regional Water District and the water impounded is used for flood control, residential and commercial sales, irrigation, and recreation.

Lake Livingston is a reservoir located in the East Texas Piney Woods. Lake Livingston was built and is owned and operated by the Trinity River Authority (TRA) of Texas under contract with the City of Houston for water-supply purposes. The lake is the second-largest lake located wholly within the state of Texas. The Livingston Dam, constructed across the Trinity River about 7 miles (11 km) southwest of the city of Livingston is 2.5 miles (4 km) in length and has an average depth of 55 feet (17 m).

Lake Ray Hubbard, formerly Forney Lake, is a fresh water impoundment (reservoir) located in Dallas, Texas in the counties of Dallas, Kaufman, Collin, and Rockwall just north of the City of Forney. It was created by the construction of the Rockwall-Forney Dam which impounded the East Fork Trinity River.

Lavon Lake is a freshwater reservoir located in southeast Collin County, Texas, on the East Fork of the Trinity River near Wylie, off State Highway 78. It is commonly called Lake Lavon for commercial and recreational purposes, but Lavon Lake is its official name according to the U.S. Army Corps of Engineers. It was originally called Lavon Reservoir.

Lewisville Lake is a reservoir in North Texas (USA) on the Elm Fork of the Trinity River in Denton County near Lewisville. Originally engineered in 1927 as Lake Dallas, the reservoir was expanded in the 1940s and 1950s and renamed Lewisville Lake. It was built for flood control purposes and to serve as a water source for Dallas and its suburbs, but residents also use it for recreational purposes.

Lake Ray Roberts is an artificial 29,350-acre (119 km2) American reservoir located 10 miles (20 km) north of Denton, Texas, between the cities of Pilot Point, Texas and Sanger, Texas. It is filled by a tributary of the Trinity River.

Red Oak Creek or Bullock Creek is a 35 miles (56 km) stream and tributary of the Trinity River in North Texas.

The Ronald Kirk Bridge is a pedestrian footbridge over the Trinity River in Dallas, Texas. It connects Downtown Dallas and West Dallas, paralleling the 2012 Margaret Hunt Hill Bridge for vehicles, and the 1930 Texas and Pacific Railway Trinity River Bridge.

Trinity Bay is the northeast portion of Galveston Bay, bordered by Chambers and Harris counties in Texas, United States. The bay, approximately 20 miles (32 km) long, heads at the mouth of the Trinity River. Trinity Bay is separated from the main part of Galveston Bay by the San Jacinto River, part of the Houston Ship Channel.

The Trinity River Audubon Center is a nature center in the Great Trinity Forest, a large urban open space park in Southeast Dallas, Texas.

The Trinity River Authority (TRA) was formed in 1955 by the Texas legislature. Its main concerns are water supply and water conservation in the Trinity River Basin. The authority extends over 17,965 square miles (46,529 km2), including all or part of 17 counties. The general offices of the authority are located in Arlington, Texas.
White Rock Creek is a 30-mile (48.3 km) creek occupying a chain of four sub-watersheds [1] within the Trinity River Headwaters watershed. From its source near Frisco, Texas at 42°21'36"N/96°46'54.58"W, this creek runs south-by-south-east through suburban Dallas for 23.5 miles (37.8 km) where it widens into White Rock Lake, then continues south for another 8 miles (12.9 km) to its mouth at 32°43'25"N/96°44'02"W on the Trinity River, of which it is a major tributary.

Lake Worth is located on the West Fork of the Trinity River. It is entirely inside the city limits of Fort Worth, Texas, United States.