Question: Where was the city near Powell Butte which the transmitter  was located?

Context paragraphs:
Powell Butte: Powell Butte is an extinct volcanic cinder cone butte in Portland, Oregon, United States.  It is one of four such cones (the others being Rocky Butte, Kelly Butte and Mount Tabor) inside the city that are home to a city park and is part of the Boring Lava Field, an area of extinct volcanoes.  Powell Butte hosts the Powell Butte Nature Park.

Estouteville (Esmont, Virginia): Estouteville is a historic home located near Powell Corner, Albemarle County, Virginia.  The main house was begun in 1827, and consists of a two-story, seven-bay central block, 68 feet by 43 feet, with two 35 feet by 26 feet, three-bay, single-story wings.  It is constructed of brick and is in the Roman Revival style.  A Tuscan cornice embellishes the low hipped roofs of all three sections, each of which is surmounted by tall interior end chimneys.  The interior plan is dominated by the large Great Hall, a 23-by-35-foot richly decorated room.  Also on the property are a contributing kitchen / wash house; a square frame dairy (now a chicken house); a square, brick smokehouse, probably built in the mid-19th century, also covered with a pyramidal roof; and a frame slave quarters.

Columbus Zoo and Aquarium: The Columbus Zoo and Aquarium is a non-profit zoo located near Powell in Liberty Township, Delaware County, Ohio, United States, north of the city of Columbus.  The land lies along the eastern banks of the O'Shaughnessy Reservoir on the Scioto River, at the intersection of Riverside Drive and Powell Road.  It has a worldwide reputation, largely attributable to the efforts and promotion of director emeritus Jack Hanna.  In 2009, it was named by the USA Travel Guide as the number one zoo in the United States.  It was also ranked number one best zoo in 2012 by Besties Readers Choice.

KDLT-TV: KDLT-TV is an NBC-affiliated television station licensed to Sioux Falls, South Dakota, United States, serving eastern South Dakota and southwestern Minnesota.  Owned by Red River Broadcasting, the station broadcasts a high definition digital signal on UHF channel 47, which remaps to former analog channel 46 via PSIP.  It also operates a full-powered satellite station: KDLV-TV in Mitchell (UHF digital channel 26, virtual channel 5).  KDLT's studios and offices are located on South Westport Avenue in Sioux Falls and its transmitter is located southeast of the city near Rowena; KDLV's transmitter is located near Plankinton.

Clatsop Butte: Clatsop Butte is an upland butte lying directly south of Powell Butte in southeast Portland, Oregon, United States.  Clatsop Butte City Park, which occupies part of the butte, is at coordinates at an elevation of 571 ft .  Johnson Creek, Southeast Foster Road, and the Springwater Corridor Trail pass between Powell Butte and Clatsop Butte near Southeast 152nd Avenue.

Rocky Butte: Rocky Butte is an extinct volcanic cinder cone butte in Portland, Oregon, United States.  It is one of four, along with Kelly Butte, Powell Butte, and Mount Tabor, inside the city that are each home to a city park, Rocky Butte playing host to Joseph Wood Hill Park.  A rotating beacon at the summit of the butte is visible at night for miles.  It is also part of the Boring Lava Field, a group of over 30 cinder cones in Oregon and Washington.  The slopes of Rocky Butte are also home of the Rocky Butte Natural Area.  In addition, it was formerly home to Rocky Butte Jail and Judson Baptist College.  Currently it is the location of a City Bible Church campus, Portland Bible College and City Christian Schools.  It lies next to Interstate 205.

Bend, Oregon: Bend is a city in, and the county seat of, Deschutes County, Oregon, United States.  It is the principal city of the Bend, Oregon Metropolitan Statistical Area.  Bend is Central Oregon's largest city, and despite its modest size, is the "de facto" metropolis of the region, owing to the low population density of that area.  Bend recorded a population of 76,693 at the time of the 2010 U.S. Census, up from 52,029 at the 2000 census.  The estimated population of the city as of 2013 is 81,236.  Bend's metro population was estimated at 165,954 as of July 1, 2013.  The Bend MSA is the fifth largest metropolitan area in Oregon.

Toba Montrose General Partnership: The Toba Montrose General Partnership (TMGP) is a 40/60 partnership between Alterra Power and GE Energy Financial Services that owns the Toba Montrose hydroelectric project, located near Powell River, British Columbia on the traditional lands of our First Nations partners: the Klahoose, Sliammon and Sechelt First Nations.  The TMGP plants at East Toba River and Montrose Creek are British Columbia's largest run of river hydro plants.  They have combined capacity of 196 MW and are expected to generate an average net annual energy of 710-730 GWh, which is contracted to B.C. Hydro under a 35-year EPA.

Dry River (Crooked River): The Dry River is an intermittent tributary, 88 mi long, of the Crooked River in the U.S. state of Oregon.  The stream arises near Hampton Buttes north of Hampton and U.S. Route 20 between Brothers and Riley in the Oregon High Desert.  Beginning in eastern Deschutes County near its border with Crook County, it flows generally northwest along the Deschutes–Crook county line, crossing briefly into Crook County before turning slightly south and returning to Deschutes County.  Along these upper reaches, it flows roughly parallel to the highway, under which it passes several times before turning sharply north near the Horse Ridge Research Natural Area, 19 mi southeast of Bend.  Continuing north and re-entering Crook County, it passes under Powell Butte Highway, Oregon Route 126 (Ochoco Highway), and Oregon Route 370 (O'Neil Highway) before entering the Crooked River 34 mi from the larger stream's confluence with the Deschutes River.

WWF80: WWF80 is a NOAA Weather Radio station that serves the Bend-Redmond Metropolitan Area.  It is programmed from the National Weather Service forecast office in Pendleton, Oregon with its transmitter located on Powell Butte near Bend.

Supporting paragraphs: WWF80 Bend, Oregon
Answer: Deschutes County, Oregon, United States