Keya Paha River | |
---|---|
Location | |
Country | United States |
State | South Dakota, Nebraska |
Physical characteristics | |
Source | Todd County, South Dakota |
• coordinates | 43°13′38″N 100°23′18″W / 43.22722°N 100.38833°W [1] |
Mouth | Niobrara River in Boyd County, Nebraska |
• coordinates | 42°53′54″N 98°59′6″W / 42.89833°N 98.98500°W [1] |
Length | 127 mi (204 km) |
Basin size | 1,710 sq mi (4,400 km2) [2] |
Discharge | |
• location | near Naper |
• average | 139 cu/ft. per sec. [3] |
The Keya Paha River ( /ˈkɪpəhɔː/ KIP-ə-haw) [4] is a river flowing 127 miles (204 km) [5] through the U.S. states of South Dakota and Nebraska.
The name is derived from the Dakota language ke'-ya pa-ha', meaning "turtle hill", [6] specifically Turtle Butte. [7] The river's name was given to Keya Paha County, Nebraska, through which it flows. [8]
The river originates in Todd County in south central South Dakota, at the confluence of Antelope Creek and Rock Creek near the town of Hidden Timber. [9] It flows in a generally southeasterly direction through Todd and Tripp counties in South Dakota and then through Keya Paha and Boyd counties in Nebraska. [1] It ends at its confluence with the Niobrara River about 7 miles (11 km) west of Butte, Nebraska. [10] The river has a year-round flow, except for winter ice, and has a quality of water better than all other South Dakota rivers. [11]
In 1861, the border between the Nebraska and Dakota territories followed the Keya Paha River from the 43rd parallel to the river's confluence with the Niobrara; it then followed the Niobrara to Missouri. This situation lasted until 1882 when the boundary was changed to follow the 43rd parallel all the way to Missouri; [12] the change added portions of Keya Paha and Boyd counties to Nebraska. [13]
At a gaging station south of Naper in Boyd County, the river's mean discharge was 138.6 cubic feet per second (3.92 m3/s). The maximum mean annual discharge was 389.4 cubic feet per second (11.03 m3/s), recorded in 1962; the minimum mean annual discharge was 44.5 cubic feet per second (1.26 m3/s), recorded in 1976. [14] The peak flow recorded at that point was 9,280 cubic feet per second (263 m3/s), registered on July 1, 1962. [15] From July 22 to July 30, 1976, the discharge was recorded as zero. [16]
Keya Paha River | |
---|---|
Location | |
Country | United States |
State | South Dakota, Nebraska |
Physical characteristics | |
Source | Todd County, South Dakota |
• coordinates | 43°13′38″N 100°23′18″W / 43.22722°N 100.38833°W [1] |
Mouth | Niobrara River in Boyd County, Nebraska |
• coordinates | 42°53′54″N 98°59′6″W / 42.89833°N 98.98500°W [1] |
Length | 127 mi (204 km) |
Basin size | 1,710 sq mi (4,400 km2) [2] |
Discharge | |
• location | near Naper |
• average | 139 cu/ft. per sec. [3] |
The Keya Paha River ( /ˈkɪpəhɔː/ KIP-ə-haw) [4] is a river flowing 127 miles (204 km) [5] through the U.S. states of South Dakota and Nebraska.
The name is derived from the Dakota language ke'-ya pa-ha', meaning "turtle hill", [6] specifically Turtle Butte. [7] The river's name was given to Keya Paha County, Nebraska, through which it flows. [8]
The river originates in Todd County in south central South Dakota, at the confluence of Antelope Creek and Rock Creek near the town of Hidden Timber. [9] It flows in a generally southeasterly direction through Todd and Tripp counties in South Dakota and then through Keya Paha and Boyd counties in Nebraska. [1] It ends at its confluence with the Niobrara River about 7 miles (11 km) west of Butte, Nebraska. [10] The river has a year-round flow, except for winter ice, and has a quality of water better than all other South Dakota rivers. [11]
In 1861, the border between the Nebraska and Dakota territories followed the Keya Paha River from the 43rd parallel to the river's confluence with the Niobrara; it then followed the Niobrara to Missouri. This situation lasted until 1882 when the boundary was changed to follow the 43rd parallel all the way to Missouri; [12] the change added portions of Keya Paha and Boyd counties to Nebraska. [13]
At a gaging station south of Naper in Boyd County, the river's mean discharge was 138.6 cubic feet per second (3.92 m3/s). The maximum mean annual discharge was 389.4 cubic feet per second (11.03 m3/s), recorded in 1962; the minimum mean annual discharge was 44.5 cubic feet per second (1.26 m3/s), recorded in 1976. [14] The peak flow recorded at that point was 9,280 cubic feet per second (263 m3/s), registered on July 1, 1962. [15] From July 22 to July 30, 1976, the discharge was recorded as zero. [16]