The phrase "flat mountain" is correct and usable in written English.
It can be used to describe a mountain that has a flat or level top, often referred to as a plateau or mesa.
Example: "The hikers were excited to reach the summit of the flat mountain, where they could enjoy a panoramic view of the surrounding landscape."
Alternatives: "level mountain" or "plateau mountain."
From here I climbed Table Mountain, a rather flat mountain formed partly of porphyry, partly of trachyte, dropping off precipitously to the west.
Found only in northwestern Ecuador, these pufflegs prefer dense vegetation and stunted elfin forests on the tops of flat mountain ridges.
The notion of big ski area versus small creates a tug of war between resort managers eyeing every consumer dollar in a relatively flat mountain resort market.
We passed the small Mormon town of Hebron and arrived around noon at Terry's Ranch, which lay at the foot of the Juniper Mountains, a rather flat mountain range surpassed by individual peaks.
Keep a small Puja thali on the kalash and make a small flat mountain of rice grains.
Adirondack Saddle Tours (315-357-4499; www.andhorse.com) and Flat Rock Mountain Tours (315-369-2657), offer year-round horidesck rides for adults and children ($30 a person, call in advance).
South Carolina FIRST DAY Table Rock State Park, in Pickens County, S.C., northwest of Greenville, got its name from the legend of a Cherokee chief god who used a flat granite mountain as a dinner table in Sah-ka-na-ga, the Great Blue Hills of God.
The Mediterranean maquis becomes part of agro-silvo-pastoral systems over large areas (Talamucci and Chaulet 1989), though a few exotic species have been planted in flat or mountain areas.
Roraima is a Tapui, a flat top mountain, home to unique flora & fauna, resembling pre-historic times.
The ratios between the height of different mountains to the wind-turbine hub height are 0, 0.417, 0.833, 0.833 (0.417) for the flat terrain, small mountain, large mountain, mountain with a bay, respectively.
From this hill stems the Camino de los Colorados, a gravel path along two miles of geologic wonders: red flat-topped mountains, green conical mountains, uneven purple ridges.
