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KVLY-TV Mast
KVLY-TV mast seen close-up
Building
Type	TV mast
Location	Blanchard, Traill County, North Dakota
Owner	Hoak Media
Coordinates	47°20′32″N 97°17′21″W / 47.34222, -97.28917Coordinates: 47°20′32″N 97°17′21″W / 47.34222, -97.28917
Construction
Completed	August 13, 1963
Height	2,063 feet (628.8 m)
Main Contractor	Kline Iron and Steel
Design Team
Architect	Hamilton Directors

The KVLY-TV mast (formerly the KTHI-TV mast) is a television transmitting mast in Blanchard, Traill County, North Dakota, USA, used by Fargo station KVLY channel 11. At 2,063 feet (628.8 m), it is currently the world's tallest supported structure on land.

The tower is located three miles west of Blanchard, North Dakota, which is roughly halfway between Fargo and Grand Forks. It became the tallest artificial structure upon the completion of its construction on August 13, 1963. The mast was surpassed in height by 18 m (57 ft) in 1974 by the Warszawa radio mast near Konstantynów, Poland, but the latter collapsed on August 8, 1991, making the KVLY mast again the tallest structure on land. If completed as planned, the UAE's Burj Dubai, presently slated for completion in 2008, will surpass the mast as the tallest land structure.

The tower was built by Hamilton Directors and Kline Iron and Steel, and took thirty days to complete, at a cost of US$500,000 ($3.3 million in 2007 dollars).

Owned by Hoak Media of Dallas, Texas, the tower broadcasts at 316 kW for television station KVLY (channel 11, an NBC affiliate) which is based in Fargo. The tower provides a broadcast area of roughly 30,000 square miles (78,000 km²).

Its overall height above mean sea level is 926 m (3,038 ft). Some time after its completion, the Federal Aviation Administration imposed a limit of 2,063 ft, based on this tower's height, on future construction; consequently, no taller structures may legally be built in the U.S. at present.^{[citation needed]}

The call letters of the television station for which it was built were originally KTHI, the "HI" referring to the height of the mast. The top is reachable by service elevator or ladder.

KVLY mast from a distance of about 1.6 km (one mile)

Base of the tower

A guy-wire anchor

Guy-wires at base

• KVLY-TV
• List of masts
• Tallest structures in the U.S.
• List of the world's tallest structures

• KXJB Tower (2060 ft - 627.8 m)
• KXTV/KOVR Tower (2049 ft - 624.5 m)

• KVLY Tower in the Structurae database
• Tower web page at KVLY-TV
• Listing 1046244 in the FCC Antenna Structure Registration database
• Listing on the Skyscraper Page
• http://www.skyscraperpage.com/diagrams/?b471
• http://www.pbase.com/talshiarr/kvly