Question: What road in England summits at 1689 ft above sea level?

Context articles: Gulf Coastal Lowlands
Hrádek (Rokycany District)
Cat and Fiddle Inn
Lake Whittlesey
Cat and Fiddle Road
Gap Mountain
List of Alpine four-thousanders
Elliott Key
Tidal flooding
Lake Bixhoma

The Gulf Coastal Lowlands is a geomorphological province in Florida.
 The province extends along the coast of the Gulf of Mexico from the western end of the Florida Panhandle to near Ft. Myers in southern Florida.
 The average width of the province is 40 km.
 While much of the province is less than 15 m above mean sea level (msl), it rises to about 100 ft above msl along its inland side.
 It is the largest geomorphological province in Florida.
 Due to its low elevation, the province was at sea level during warmer periods of the Pliocene and Pleistocene, and features such as ancient dunes and sand bars are found far inland.
 Marine terraces found in the Gulf Coastal Lowlands include the Silver Bluff [1 ft to 10 ft above mean sea level (msl)], Pamlico [8 ft to 25 ft above msl], Talbot [25 ft to 42 ft above msl], Penholoway [42 ft to 72 ft above msl] and Wicomico [70 ft to 100 ft above msl] terraces.
Hrádek (German:"Hradek") is a town in Western Bohemia, the Czech Republic (Plzeň Region, Rokycany District), 5 km southeast of Rokycany, 440 m. above sea level in the valley of Klabava (River) which is also known as Padrťský potok.
 North of Hrádek, large forested massif of Žďár (629 m. above sea level) with its lateral elevation of Hrádecký vrch (549 m. above sea level) delineates northern border of the Klabava valley while in the south relatively mild slopes form large plateau where most of Hrádek's built-up area lies.
 The most prominent elevation in the southern section of the valley is Svatý Vojtěch hill (513 m. above sea level).
 Hrádek belongs together with Rokycany and Kamenný Újezd to the contiguous urban area along the Klabava valley.
 Main artery of this urban concentration being road from Rokycany to Mirošov that runs along Hrádek's western periphery.
 Another road connecting Rokycany and Strašice via Dobřív runs north of Hrádek.
The Cat and Fiddle Inn is the second-highest inn or public house in England (the Tan Hill Inn being the highest).
 The inn is situated on the eastern fringes of Cheshire in the Peak District National Park on the A537 road just west of the Derbyshire/Cheshire county boundary, on the western side of Axe Edge Moor.
 It is at an elevation of 1689 ft above sea level (although a measurement commissioned by a former landlord suggested a figure of 1772 ft , which would surpass that of the Tan Hill Inn).
 The Ordnance Survey have fixed an accurately measured flush-bracket benchmark to the front wall of the pub.
 The height of this flush bracket is 515.1984 m , and the flush bracket is 0.4 m above the ground level, which casts doubt over the validity of the private survey.
Lake Whittlesey was a proglacial lake that was an ancestor of present-day Lake Erie.
 It formed about 14,000 years ago.
 As the Erie Lobe of the Wisconsin Glacier retreated at the end of the last ice age, it left melt-water in a previously-existing depression area that was the valley of an eastward-flowing river known as the Erigan River that probably emptied into the Atlantic Ocean following the route of today's Saint Lawrence River.
 The lake stood at 735 ft to 740 ft above sea level.
 The remanent beach is not horizontal as there is a ‘hinge line’ southwest of a line from Ashtabula, Ohio, through the middle part of Lake St. Clair.
 The hinge line is where the horizontal beaches of the lake have been warped upwards towards the north by the isostatic rebound as the weight of the ice sheet was removed from the land.
 The rise is 60 ft north into Michigan and the Ubly outlet.
 The current altitude of the outlet is 800 ft above sea level.
 Where the outlet entered the Second Lake Saginaw at Cass City the elevation is 740 ft above sea level.
The Cat and Fiddle is a road in England between Buxton, Derbyshire, and Macclesfield, Cheshire, named after the Cat and Fiddle Inn public house at its summit.
 Formed by parts of the A537, A54 and A53, it is famous for its scenic views across the Greater Manchester conurbation, the Peak District National Park and the Cheshire Plain, and for its many bends.
 It is extremely popular with motorcyclists, and is often classed as the most dangerous road in the UK.
Gap Mountain, located in Troy, New Hampshire, United States, is a small monadnock with three summits ranging between 1820 ft and 1900 ft above sea level.
 The lower north and middle summits are mostly bald and offer panoramic views of the surrounding rural landscape and of the higher and more popular Mount Monadnock.
 The Metacomet-Monadnock Trail passes over the north and middle peaks.
 The higher southern summit is wooded with no views.
 The mountain, located entirely within the Gap Mountain Reservation managed by the Society for the Protection of New Hampshire Forests, is named for the cleft separating the south peak from the north and middle summits.
This list contains all of the 128 summits and subsidiary tops of 4000 m or more above sea level in the Alps in France, Italy and Switzerland as defined by the International Climbing and Mountaineering Federation (UIAA).
 Their list, published in 1994, contains 82 'official summits' of 4,000 m or over, with the inclusion of a further 46 'lesser summits' in an enlarged list.
 Another list containing only independent peaks with a prominence of over 100m contains just 52 mountains.
Elliott Key is the northernmost of the true Florida Keys (those 'keys' which are ancient coral reefs lifted above the present sea level), and the largest key north of Key Largo.
 It is located entirely within Biscayne National Park, in Miami-Dade County, Florida, east of Homestead, Florida.
 It is bordered by the Atlantic Ocean to the east, Biscayne Bay to the west, Sands Key (across Sands Cut) to the north and Old Rhodes Key (across Caesar Creek) to the south.
 Adams Key is just west of the southern end of Elliott Key.
 Elliott Key is about seven miles (11 km) long.
 Its maximum width is about 2500 ft near the north end and its average width is less than 2000 ft .
 The higher elevations on the island range from 6 to 8 ft above sea level and occur generally along an unimproved road that runs longitudinally through the center of the island.
 The average elevation is about 3 ft above sea level.
 The key is accessible only by boat.
 Elliot Key has a National Park Service campground, but is otherwise uninhabited.
Tidal flooding, also known as sunny day flooding or nuisance flooding, is the temporary inundation of low-lying areas, especially streets, during exceptionally high tide events, such as at full and new moons.
 The highest tides of the year may be known as the king tide, with the month varying by location.
 In Florida, controversy was created when state-level government mandated that the term "nuisance flooding" and other terms be used in place of terms such as sea level rise, climate change and global warming, prompting allegations of climate change denial, specifically against Governor Rick Scott.
 This amid Florida, specifically South Florida and the Miami metropolitan area being one of the most at risk areas in the world for the potential effects of sea level rise, and where the frequency and severity of tidal flooding events increased in the 21st century.
 The issue is more bipartisan in South Florida, particularly in places like Miami Beach, where a several hundred million dollar project is underway to install more than 50 pumps and physically raise roads to combat the flooding, mainly along the west side of South Beach, formerly a mangrove wetland where the average elevation is less than one meter (3.3 feet).
 In the Miami area, where the vast majority of the land is below 10 ft , even a one-foot increase over the average high tide can cause widespread flooding.
 The 2015 and 2016 king tide event levels reached about 4 ft MLLW, 3 ft above mean sea level, or about 2 ft NAVD88, and nearly the same above MHHW.
 While the tide range is very small in Miami, averaging about 2 ft , with the greatest range being less than 2 m , the area is very acute to minute differences down to single inches due to the vast area at low elevation.
 NOAA tide gauge data for most stations shows current water level graphs relative to a fixed datum, as well as mean sea level trends for some stations.
 During the king tides, the local Miami area tide gauge at Virginia Key shows levels running at times 1 ft or more over datum.
Lake Bixhoma, is a public reservoir owned and operated by the city of Bixby, Oklahoma.
 Lake Bixhoma has 3 miles of shoreline, 110 surface acres and a maximum depth of 50 feet.
 It is located on Bixhoma Lake Road about 7 miles southeast of Bixby, and 2.2 miles south of U.S. 64 and the community of Leonard, Oklahoma.
 Built in 1965, it is situated on Leonard Mountain at an elevation of 899 ft above sea level, nearly 300 ft above the elevation of Bixby (600 ft above sea level), and was originally built to supply raw water to the city.