beautiful places in america. if you ever wondered what it is look to take flight at point of the mountain utah, you can find out. this national treasure may disappear completely if a mining company gets its way. my colleague bill weir takes to the skies above a fragile world whose future is in the air. >> reporter: for the average adrenaline addict there are countless ways to mock gravity, no shortage of flying machines to fall out of, or ramps to jump or ledges to leap. there are few places a person can step off the earth and into the sky and stay there for hours. very few places where land and air meet with such harmony, where smooth ridge juts into clockwork wind so perfectly both bird and human can catch a free ride with equal ease. and this is, this may be the best such place in the world. >> when i was a kid, i would dream about flying all the time. and you would have to run fast

and jump in the air you. could fly. and here we can do that. we run really fast. >> you didn't have to run that fast. >> that's true. you have wind. you don't have to run that fast. how incredible state. >> point of the mountain utah, most days send a rye out of color wings in the sky above sprawling suburbs of salt lake city. much the way scuba divers have the great barrier reef, and climbers cling to yosemite. this place has been a mecca of fliers ever since glider pilots trained here before world war ii. and as glider sports took off, those generations of fliers earn their wings here, some finding spots among the best aerial stunts and air batt teams. others dropping by to taste a new kind of freedom. >> when you are in a wheelchair you feel look you are in a wheelchair. this, you feel like the pilots out there. being back in it makes me feel more like myself than a lot of other everyday things.

>> reporter: director of sports and recreation for pair litzed veterans. one of two places where people can safely train and novices have flown from this spot. >> from 1-year-old to a 97-year-old lady to. go up and share, free flight with somebody and hear them giggle and laugh and smile and cry, is really special to me. and i, i love that. and i don't want to seep it disappear. >> reporter: wait? disappear. how and why would a mountain disappear? that is a controversial question around these parts. to get the answer in the most vivid way possible i am offered a tandom flight with bill, one of the most accomplished glider pilots in north america. >> i can't see what is going on behind me but it feels exciting. we rise over the neighboring houses into the utah sky with a burst of pure, uncut

exhilaration. >> oh, yeah. dang, this its great. welcome to my office. but as we head towards the southern end of the park in the sky, the landscape between my feet suddenly changes from high desert scrub brush to bulldozed wasteland. we look down on the reason for their concern. a mining company called geneva rock. in an ironic twist, this world class flying spot sits on world class sand and gravel. and geneva rock wants to take as much of it as the they can get. >> was there a moment when one day you went up and said, wait a minute the bull dozers are closer than last year? >> absolutely. march of this year. the bulldozers started pushing dirt overnight. ened of two days, tim of the mountain was gone. >> jolted into acts, the fliers began digging through public record and stunned to discover the mining company actually owns most of this land. and plans to eventually bulldoze point of the mountain into a

dusty pit. mining away their precious wind in the process. >> we are trying to raise aware nchlts ness if we don't do something it will be gone before we know it. >> reporter: this community of wind walkers knew it would be hard to rally outrage over a niche sport few will ever try in a state with so much mining. but then came the dust. as geneva rock expanded their operation here, it kicked up tons of the stuff. as desiree's video show, on a windy day it can reach downtown salt lake city. suddenly this band of fliers found it easier to again up support of their dust covered neighbors and the utah physicians for a healthy environment. >> in addition to the health consequence of inhaling this, these fine particles of death, there is almost undoubted ll ll

silica, like inhaling barbed wire. >> a damning claim, not yet proven by air tests. a reason to visit it geneva mine. >> do you think your business gets a bad rap. no one has ever gone goody there is a gravel mine moving into the neighborhood. >> sometimes i wish i had a cannedy store. i've don't think people come plane about candy stores. >> reporter: that is carl clyde. his grandfather started geneva rock when eisenhower started building highways. his family helped turn mountains into sky lines. >> if you look at the buildings and see the skyline, here is where it came from. >> came from here. >> it is such a necessary business when i seep ki kids on skateboard park, that's their recreation. >> as the the community grew closer to the mine, so did the chorus of complaints. five years ago, without admitting guilt, geneva rock was

form forced to cough up $1.7 million in fines and improvements. after caught violating air quality standard. the company says they have not received a major infraction since. clyde insists they're going above and beyond to control the dust. including the use of precious water shot through giant sprinklers. he says since his product is used in sandboxes, playground, sand traps, on golf courses there is no dangerous silica to worry about. >> it is a safe product. itch it wasn't safe all the government reg laulators that regulate our business they wouldn't allow us. >> cold comfort for the wind riders. when i show him their pamphlet, he confirms their worst fears. >> just future property that we want to mine there. >> you do want to mine there? >> we want to mine. i support their sport. a very interesting sport. i like watching it. probably not as courageous as you are i guess.

>> reporter: if this were a movie this is where the mining executive takes a flight, changes his mind and everyone lives happily ever after. but for the moment all parties await an official wind study with promises from county officials to find some solution in coming months. >> everything in life about balance. we have to be creative. find a way to work together. it is a very special place. and, once it is gone you can't get it back. >> the whole purpose of our organization is to get them to do the land swap or work out a reasonable land spur chpurchase. >> if they will swap you this land for less desirable gravel pits. >> we have to look at it. >> you would think about it. >> it might be deep sire absira. off awe mre >> reporter: thirere its plentyf sky. >> i ask people, do you like mountains. this mountain as it but to disappear. if you like hiking, mountain

biking you should care about this mountain here. after this mountain, which is next? >> our thanks to bill. coming up next, miley cyrus can't stop sticking out her tongue and it's got everyone else's tongues wagging. >> announcer: abc news, "nightline," brought to you by bp. so we could be a better, safer energy company. i can tell you - safety is at the heart of everything we do. we've added cutting-edge technology, like a new deepwater well cap and a state-of-the-art monitoring center, where experts watch over all drilling activity twenty-four-seven. and we're sharing what we've learned, so we can all produce energy more safely. our commitment has never been stronger. doorbusters this friday

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miley cyrus has gone from a wholesome child star to pole dancing on an ice cream truck to twerking on stage. a new music video has her stripping down and acting out, licking hammers and almost

baring it all. is she about to go the way of lindsay lohan and justin bieber or a strategy to twerk her way to pop culture queendom. it was the twerk heard around the world, the bump and grind fest create ad a shock moment. in the last few months miley has become a one woman wrecking ball. ♪ crashing through what most of us think is acceptable. more proof of a child star gone off the rails or a brilliant marketing move keeping her in the spotlight. >> i really feel like things have really begun after the vma performance. this is people getting to see what the movement is really about. >> reporter: miley the movement. its her mtv documentary released this week. >> it is not a transition. for me a movement, a movement about all of us being on the

same page like an army. if people could see the details they would know this isn't just some mess. this is all thought out in my mind. >> reporter: industry insiders, editorial director of hollywood reporter call her tactics genius. >> this is a calculated marketing decision in your view? >> miley is going to make millions and millions and millions of dollars off of that one vma performance. she set off, listen, we are in an era of a government shutdown, international strife, what are we talking about, miley cyrus. that is pop culture power. >> going raunchy appears to be paying off. her new song is topping the charts. of course these days, parody is the ultimate form of flattery. ♪ i came in like a wrecking ball ♪ >> reporter: the latest page in the book of miley antics a twitter war with seasoned shocker sinead o'connor. after learning that wrecking ball.

♪ we kissed >> reporter: was inspired by her song. ♪ nothing compares to you >> reporter: sinead gave miley advice, writing an open letter telling her to show her talent not sexuality. saying, the music business will prostitute you for all you are worth and make you think it's what you wanted. miley turned mean girl, mocking her mental breakdown and comparing her to amanda bynes in rehab. sinead struck back, calling miley a bully for taunting those with mental illness. and miley brushed it off. sinead. i didn't have time to write you an open letter because i am hosting and performing on snl this week. >> the sinead o'connor situation is unfortunate, miley mocked mental illness. miley right now seems to be really into the business of getting attention and not worrying what the repercussions are. >> reporter: but miley has been pushing the envelope for years.

at 16 she was already pole dancing on an ice cream cart at the teen choice award. ♪ for those that don't know me >> reporter: a year later, miley warned us she can't be tamed. >> miley spent five years killing the ghost of hannah montana. she is doing what any respectable, young pop star is doing. making parents appalled. she is making the media outraged. she is make young fans love her. >> that's her brand. >> the miley cyrus brarngsd nd, opposition to taylor swift, they're the two tent poles of female pop music. taylor swift, the princess, sings, breakups and boys. miley cyrus is not getting dumped by any one. >> why are we shocked when miley strips down. after all isn't this a rite of passage. britney infamously locked lips with madonna. christina wanted to get dirty. and this week, rihanna remind us

she is the baddest girl of them all unveiling her video for pour it up giving a master class in twerking, and provoking comparisons to miley. >> miley! >> reporter: seeking notoriety can be look a runaway train you have to be careful it doesn't go off the rails. >> miley cyrus is no lindsay lohan. any one who thinks she is a train wreck are wrong. a young woman completeliy ein control of her career. she knows what she is doing. ♪ we can't stop. we won't stop ♪ >> reporter: if the song is any indication, she won't stop. ♪ ♪ hey it's our body we can do what we want to ♪ >> and coming up next, for us, when it comes to fight or flight, these animals are ready to do battle. this is the age of knowing how to make things happen.

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when it comes to passing on bloodlines, you might be surprised that these animals, even some we think of as gentle giant are listening to the call

of the wild. here's abc's john donvan. >> bird do it. frogs do it. even teeny tiny bugs do it. they all do it. they all -- well they all beat the what you call it out of each other. all species have their internal arguments, and all humans love a good fight. so with some pretty decent color commentary it's lion versus lion. the fitness of his mane is in kags -- indication of strength. >> juvenile charges, two tons collide. >> the cat mob scene they clash head-to-headen a mass brawl, using long clause and teeth that grab their rivals and go for the neck.

>> what is the point of ate all? this man who works for "national geographic." >> it is entertaining to seat animals fight. we pay $50, $100 to see humans boxing in the ring. this is the survival, fight for life that we are getting to see. it is educational, exciting. >> educational as in watch this. the blue freeze, every clash this happens. trunk and tusks weigh 500 pound. >> anatomy and physics lesson in one. >> the skulls aren't solid but built like a honey comb. al allowing for their head to be maneuvered by neck muscles. same thing for giraffes. the inside the neck story. >> if this blood supply is cut off for even a moment, the giraffe could lose consciousness. >> oh, my gosh. >> a blow to the back of the head is all it takes. >> here's what you find out about what animals fight for. it is food, it is water and it

is sex, or as the narrative put it, the bloodline. >> he is a bachelor lion on a mission to mate to. establish his bloodline. he will have to take control of this pride by force. >> meaning that males are with the females.ho get to mate but feet mails gthe females get. this one fighting off the male intruder. here is why? >> they're protecting theiren e er j enn enner -- energetic,a if he wins the he'll kill the cubs. and the females will lose all the investment they put into the cubs that are living right now. >> reporter: tough world out there. good tv. hmm doesn't seem fair somehow. john donvan, abc news, washington. >> wow, grab your popcorn. animal fight night premiere's,

october 6th on "omg! insider," the top trending stories you o know. >> miley cyrus is lashing out at sinead o'connor. >> this has gotten ugly.need t >> outrage as miley mocks sinead o'connor for being mentally ill. >> it is so irresponsible for miley to make fun of people with mental illness. after a depressed mom tried to ram the white house gate, stars reveal their own post-partum struggles. you might want to keep your ring on. >> inside "glee's" tribute to cory. and the cast member who just got d. >> i couldn't have asked for anybody better. kerry, nicole. i'm with hollywood's power women. >>engage keltie's tour of paris hilton's mansion. >> the studio. the nightclub. >> my bedroom is like the vip room. and we're with donatella's

house of versace double. >> has she seen the movie? >> i don't think so. >> uh-oh. now where yahoo! and broadcast meet for 24/7 access to celebrity news. "omg! insider." did post-partum depression play a role in the capitol hill shooting? star moms talking about the battles with the very real illness. >> mental illness and social media have sparked a feud between miley cyrus and sinead o'connor. draggingey spears and amanda bynes into the middle. and now billy ray cyrus is talking as the controversy heatn up over miley's, quote, dangerous tweets. >> it's evolved into a battle of dueling divas. ♪ >> miley cyrus is lashing out at sinead o'connor. >> miley versus sinead. the feud escalating today. >> ooh, this has gotten ugly. >> i just want to say, ladies, to your respective corners, please. >> the drama started after miley released the director's cut of her wrecking ball video.

the look clearly inspired by sinead's iconic video. "nothing compares to you." >> reporters asked o'connor for her reaction. instead she wrote an open letter to miley calling on her to tone down her sexualized persona. quote, you have enough talent that you don't need to let the music business make a prostitut of you. the singer fired back on twitter comparing sinead to amanda bynes who is currently undergoing treatment for mental health issues. >> i think bringing amanda bynes into the conversation was not only completely irrelevant but also really irresponsible. >> in our newsroom today, this doctor says miley crossed the line when she posted sinead's twitter meltdown from last year after suicidal thought >> depressed and worried and i think i was -- >> it is so irresponsible for s. someone like miley cyrus, who is so in the public spotlight, to make fun of people with mental illness. this young woman needs to understand if she's going to swing naked recking ba