Gudgenby River

The Gudgenby River, a perennial river that is part of the Murrumbidgee catchment within the Murray-Darling basin, is located in the Australian Capital Territory, Australia.

Gudgenby
Gudgenby River is located in Australian Capital Territory
Gudgenby River
Location of the Gudgenby River mouth in the ACT
Location
CountryAustralia
TerritoryAustralian Capital Territory
RegionSouth Eastern Highlands (IBRA), Capital Country
Physical characteristics
SourceMount Gudgenby and Yankee Hat, Brindabella Range
Source confluenceBogong Creek and Middle Creek (Australian Capital Territory)
 ⁃ locationNamadgi National Park
 ⁃ coordinates35°46′17″S 148°56′31″E / 35.77139°S 148.94194°E
 ⁃ elevation995 m (3,264 ft)
Mouthconfluence with the Murrumbidgee River
 ⁃ location
near Tharwa
 ⁃ coordinates
35°31′14″S 149°4′33″E / 35.52056°S 149.07583°ECoordinates: 35°31′14″S 149°4′33″E / 35.52056°S 149.07583°E
 ⁃ elevation
573 m (1,880 ft)
Length35 km (22 mi)
Basin features
River systemMurrumbidgee River,
Murray–Darling basin
Tributaries 
 ⁃ leftNursery Creek, Orroral River, Booroomba Creek, Naas River
 ⁃ rightHospital Creek (ACT), Dry Creek (ACT), Half Moon Creek
[1]

Location and features

Formed by the confluence of Bogong Creek and Middle Creek, the Gudgenby River rises within Namadgi National Park, below Yankee Hat and Mount Gudgenby, on the south-eastern slopes of the Brindabella Range in the south of the Australian Capital Territory (ACT). The river flows generally north and north-east, joined by nine tributaries, including the Naas River and Orroral River, before reaching its confluence with the Murrumbidgee River, near Tharwa. The river descends 422 metres (1,385 ft) over its 35 kilometres (22 mi) course.[1]

The river catchment contains ecologically significant alpine wetlands.

In 2004, ACTEW announced that the creation of a large 159 gigalitres (5.6×109 cu ft) reservoir by damming the Gudgenby River, below Mount Tennent, was one of three options being considered as part of the Future Water Options Project in order to provide improved reliability and increased supply of potable water for Canberra and the ACT. By 2005, the ACT Government decided that the creation of the Mount Tennent dam would not proceed; in favour enlarging the Cotter Dam.[2]

Climate

Gudgenby River, due to its much higher elevation, yields a noticeably cooler climate than that of Canberra. Gudgenby River is precisely where the record low of –14.6° C for the Australian Capital Territory was held.

See also

References

  1. ^ a b "Map of Gudgenby Creek, ACT". Bonzle.com. Retrieved 14 February 2013.
  2. ^ "Proposal for the pass-through of water supply augmentation costs" (PDF). Submission to the Independent Competition and Regulatory Commission. ACTEW Corporation. 13 January 2006. pp. 1, 8.

External links

Dry Creek

Dry Creek may refer to:

Arroyo (creek) - a type of dry creeks.

Wadi - a type of dry creeks, most commonly found in the Middle East.

Fauna of the Australian Capital Territory

The fauna of the Australian Capital Territory includes representatives from most major Australian animal groups.

Geology of the Australian Capital Territory

The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian. During the Ordovician period the region—along with most of eastern Australia—was part of the ocean floor. The area contains the Pittman Formation consisting largely of Quartz-rich sandstone, siltstone and shale; the Adaminaby Beds and the Acton Shale.Most of the younger rocks are pyroclastic deposits from explosive volcanic eruptions, but the Yarralumla Formation is a sedimentary mudstone/siltstone formation that was formed around 425 million years ago.

In the 1840s fossils of brachiopods and trilobites from the Silurian period were discovered at Woolshed Creek near Duntroon by the Reverend William Branwhite Clarke. At the time these were the oldest fossils discovered in Australia, though this record has since been far surpassed. Other specific geological places of interest include the State Circle cutting and the Deakin anticline.

The early European name for the district was "Limestone Plains". In 1820, following the discovery of Lake George and the Yass River, Governor Lachlan Macquarie decided to send a party, with provisions for one month, to discover the Murrumbidgee River. Joseph Wild was accompanied by James Vaughan, a constable, and Charles Throsby Smith, a nephew of the explorer Charles Throsby. Detailed instructions had been given to the explorers by Charles Throsby, who had accompanied the Lake George exploration party earlier in the year. They were provided with acid to test for limestone. On 7 December 1820, Smith recorded in his journal: ... Came on to one of the plains we saw at 11 o’clock. At half past 1, came to a very extensive plain, fine Rich Soil and plenty of grass. Came to a Beautiful River plains that was running thro’ the plains in a S.W. direction, by the side of which we slept that night. When we made the Hut this evening, we saw several pieces of stone that had been burnt by all appearances. I then examined some of it, which proved to be limestone. ...

There is, however, little limestone evident at the surface in the district. There is an outcrop at Acton, near the Museum of Australia, by the shores of Lake Burley Griffin.

These formations became exposed when the ocean floor was raised by a major volcanic activity in the Devonian forming much of the east coast of Australia.

Much of the western and southern parts of the Australian Capital Territory (ACT) are made from granite-like rocks. These are from the Murrumbidgee Batholith intruding during the late Silurian or early Devonian times.

List of Australian place names of Aboriginal origin

Place names in Australia have names originating in the Australian Aboriginal languages for three main reasons:

Historically, white explorers and surveyors may have asked local Aboriginal people the name of a place, and named it accordingly. Where they did not ask, they may have heard the place was so-named. Due to language difficulties, the results were often misheard and misunderstood names, such as the name of the Yarra River. There are a suspicious number of place names which translate as pretty and resting place, which may imply European romanticism, and no doubt a good deal of mispronunciation and corruption in general.

Australian governments have officially named many places, particularly suburbs, after Aboriginal people or language groups, such as Aranda or Tullamarine.

The place name has always been called thus by Aboriginal people, and Aboriginal people still live in the area. This is particularly so for Aboriginal communities, such as Maningrida in the Northern Territory. This is more frequent where white settlement has been less dense, particularly in Central Australia and the Top End.Watkin Tench, who arrived on the First Fleet, observed of the Aboriginal languages of present-day Sydney:

We were at first inclined to stigmatise this language as harsh and barbarous in its sounds. Their combinations of words in the manner they utter them, frequently convey such an effect. But if not only their proper names of men and places, but many of their phrases and a majority of their words, be simply and unconnectedly considered, they will be found to abound with vowels and to produce sounds sometimes mellifluous and sometimes sonorous. What ear can object to the names of Colbee (pronounced exactly as Colby is with us), Bereewan, Bondel, Imeerawanyee, Deedora, Wolarawaree, or Baneelon, among the men; or to Wereeweea, Gooreedeeana, Milba, or Matilba, among the women? Parramatta, Gweea, Cameera, Cadi, and Memel, are names of places. The tribes derive their appellations from the places they inhabit. Thus Cemeeragal, means the men who reside in the bay of Cameera; Cadigal, those who reside in the bay of Cadi; and so of the others.

List of watercourses in the Australian Capital Territory

This is a list of watercourses in the Australian Capital Territory. It includes all rivers, streams, brooks, creeks, gullies, anabranches, backwaters, and any other watercourses with a gazetted name.

This list is complete with respect to the 1996 Gazetteer of Australia. Dubious names have been checked against the online 2004 data, and in all cases confirmed correct. However, if any watercourses have been gazetted or deleted since 1996, this list does not reflect these changes. Strictly speaking, Australian place names are gazetted in capital accordance with normal capitalisation conventions. Locations are as gazetted; obviously some watercourses may extend over long distances.

Mount Tennent

Mount Tennent (Aboriginal: Tharwa) is a mountain with an elevation of 1,375 metres (4,511 ft) AHD  in the southern part of the Australian Capital Territory in Australia. The Gudgenby River flows at the base of the mountain.

Murray–Darling basin

The Murray–Darling basin is a large geographical area in the interior of southeastern Australia. Its name is derived from its two major rivers, the Murray River and the Darling River. The basin, which drains around one-seventh of the Australian land mass, is one of the most significant agricultural areas in Australia. It spans most of the states of New South Wales and Victoria, the Australian Capital Territory, and parts of the states of Queensland (lower third) and South Australia (southeastern corner). The basin is 3,375 kilometres (2,097 mi) in length, with the Murray River being 2,508 km (1,558 mi) long.

Most of the 1,061,469 km2 (409,835 sq mi) basin is flat, low-lying and far inland, and receives little direct rainfall. The many rivers it contains tend to be long and slow-flowing, and carry a volume of water that is large only by Australian standards.

The Snowy Mountains Scheme provides some security of water flows to the Murray-Darling basin, providing approximately 2,100 gigalitres (7.4×1010 cu ft) of water a year to the basin for use in Australia’s irrigated agriculture industry, which is worth about A$3 billion per annum, representing more than 40% of the gross value of the nation's agricultural production.

Murrumbidgee River

Murrumbidgee River (), a major tributary of the Murray River within the Murray–Darling basin and the second longest river in Australia. It flows through the Australian state of New South Wales and the Australian Capital Territory. It descends 1,500 metres (4,900 ft) as it flows 1,485 kilometres (923 mi) in a west-northwesterly direction from the foot of Peppercorn Hill in the Fiery Range of the Snowy Mountains towards its confluence with the Murray River near Boundary Bend.

The word Murrumbidgee means "big water" in the Wiradjuri language, one of the local Aboriginal languages. The river itself flows through several traditional Indigenous Australian lands, home to various Aboriginal tribes. In the Australian Capital Territory, the river is bordered by a narrow strip of land on each side; these are managed as the ‘Murrumbidgee River Corridor’ (MRC). This land includes nature reserves, eight recreation reserves, a European heritage conservation zone and rural leases.

Naas River

The Naas River, a perennial stream of the Murrumbidgee catchment within the Murray-Darling basin, is located in the Australian Capital Territory, Australia.

Orroral River

Orroral River, a perennial stream of the Murrumbidgee catchment within the Murray-Darling basin, is located in the Australian Capital Territory, Australia.

Seat of Government Acceptance Act 1909

The Seat of Government Acceptance Act 1909 is an Australian Commonwealth Government act, that in conjunction with the Seat of Government Surrender Act 1909 transferred land from the state of New South Wales to the Commonwealth for the creation of the Federal Capital Territory (now Australian Capital Territory).

The act was signed on 13 December 1909 by the Governor-General Lord Dudley. The Seat of Government Surrender Act 1909 was passed by the New South Wales government the following day, creating a site for the national capital in law.

Climate data for Gudgenby River, ACT (Murrumbidgee Catchment); 975 m AMSL; 35° 45' 00.00" S
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 39.0
(102.2)
37.8
(100.0)
33.5
(92.3)
31.0
(87.8)
22.3
(72.1)
16.3
(61.3)
16.5
(61.7)
21.5
(70.7)
25.8
(78.4)
28.5
(83.3)
32.0
(89.6)
35.0
(95.0)
39.0
(102.2)
Average high °C (°F) 25.7
(78.3)
25.4
(77.7)
22.1
(71.8)
17.9
(64.2)
13.1
(55.6)
10.1
(50.2)
9.3
(48.7)
10.9
(51.6)
13.8
(56.8)
17.4
(63.3)
20.0
(68.0)
23.7
(74.7)
17.5
(63.4)
Average low °C (°F) 9.3
(48.7)
9.4
(48.9)
6.6
(43.9)
2.5
(36.5)
0.1
(32.2)
−2.3
(27.9)
−3.0
(26.6)
−1.8
(28.8)
0.0
(32.0)
3.2
(37.8)
5.0
(41.0)
7.1
(44.8)
3.0
(37.4)
Record low °C (°F) −2.5
(27.5)
−2.2
(28.0)
−4.8
(23.4)
−8.2
(17.2)
−11.0
(12.2)
−12.0
(10.4)
−14.6
(5.7)
−10.8
(12.6)
−9.3
(15.3)
−7.0
(19.4)
−5.2
(22.6)
−1.5
(29.3)
−14.6
(5.7)
Average precipitation mm (inches) 75.2
(2.96)
57.9
(2.28)
65.4
(2.57)
55.7
(2.19)
55.6
(2.19)
69.3
(2.73)
58.2
(2.29)
57.9
(2.28)
69.7
(2.74)
74.8
(2.94)
63.7
(2.51)
63.9
(2.52)
767.3
(30.2)
Average precipitation days 6.9 6.2 7.0 6.5 7.1 8.5 8.4 9.2 9.2 9.4 8.1 7.6 94.1
Source: [1]
Rivers of the Murrumbidgee River catchment, New South Wales and the Australian Capital Territory, Australia
Rivers, other watercourses, reservoirs, river islands and waterfalls of the Australian Capital Territory
Rivers and creeks
Reservoirs
River islands
Waterfalls

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