The Craig River's watershed covers 737 km2 (285 sq mi),[6] and its mean annual discharge is 69.3 m3/s (2,450 cu ft/s).[6] The river's watershed's land cover is classified as 30.4% snow/glacier, 30.3% conifer forest, 17.5% barren, 12.6% shrubland, and small amounts of other cover.[6] The Alaska portion of the watershed is contained within Tongass National Forest. In British Columbia the Craig Headwaters Protected Area provides a corridor about 5 km (3.1 mi) wide around the Craig River from the Alaskan border to the Jekill River confluence.[12][13]
The river was named for John Davidson Craig, BA, BSc, DLS, who was in charge of international boundary surveys in the vicinity of the Unuk River in 1905, the Whiting River in 1906, the Bradfield River in 1907, the Iskut River in 1908, and the Salmon River in 1920. J.D. Craig was appointed Boundary Commissioner for His Britannic Majesty, 7 May 1925.[1] Historically the Craig River was sometimes called the South Fork of the Iskut River.
In British Columbia the Craig River, above its confluence with the Jekill River, flows through the Craig Headwaters Protected Area. Tributaries that join the Craig within the protected area include Pounder Creek, flowing north from Mount Pounder and Mount Alex,[17] Simma Creek,[18] Dick Creek, flowing southeast from Zippa Mountain, Mount Claude, Inhini Mountain, Simma Mountain, and Mount Dick,[19] and Brunt Creek, flowing north from Brunt Mountain and Benno Mountain.[20] At the east end of the Craig Headwaters Protected Area the Jekill River joins the Craig from the south. The Jekill originates in high glaciated mountains including Mount Alex, Mount Pounder, Mount Lewis Cass, Mount Zara, and Kalahin Mountain. The Jekill's main tributary is Olatine Creek, which flows north from Mount Zara and Olatine Mountain.[21] After the Jekill confluence the Craig River turns north, flowing east of Seraphim Mountain.[22] After a few kilometres the Craig turns northwest and west. It is joined by Sky Creek[23] and Raven Creek, flowing north from Raven Mountain and Zippa Mountain,[24] after which the Craig River empties into the Iskut River, just across the Iskut from the Hoodoo River and Hoodoo Mountain.[2][12][16]
Many major, glaciated mountains over 1,500 m (4,900 ft) tall are found in the Craig River watershed and along its drainage divides. Among those over 2,000 m (6,600 ft) are Kalahin Mountain (2,380 m (7,810 ft)), Olatine Mountain (2,314 m (7,592 ft)), Jekill Peak (2,150 m (7,050 ft)), Mount Lewis Cass (2,078 m (6,818 ft)), and Mount Alex (2,074 m (6,804 ft)).[25][2][12][16]
Ecology
The Craig River's watershed supports low elevation coastal western hemlock forest ecosystems and areas providing ideal growing conditions for Sitka spruce, with trees reaching over 60 m (200 ft) in height.[13]
Two major inactive mine sites, the Snip Mine[28] and the Johnny Mountain Mine, are located in the northeastern part of the Craig River watershed. Both are former gold mines.[27]
^ abLength measured using BCGNIS coordinates, topographic maps, and Toporama
^ abcde"Northwest Water Tool". BC Water Tool. GeoBC, Integrated Land Management Bureau, Ministry of Agriculture and Lands, Government of British Columbia. Retrieved 17 September 2021.