The previous encounters are far from the only fights with your draconic foes. There are four named dragons to encounter out in the world, random dragons to battle in almost every location, as well as just out in the wild and a number of dragon roosts where the beasts guard word walls. As you pass certain milestones the dragons will become more common:
• The first milestone is after killing Mirmulnir. Dragons will now begin to appear all across the world although they’re still a fairly rare sight.
• The second milestone is after acquiring Dragonrend. Dragons will become much more common and appear fairly often whenever you arrive at a city.
• The last milestone is after completing the main storyline. Dragons will appear constantly at this point, attacking you damn near any time you fast travel to a city or dungeon.
When you arrive in a small hamlet that you haven’t visited before Nahagliv will come to attack. For this guide the beast attacked upon arrival at Rorikstead during the “A Night to Remember” quest. He is essentially a beefed up version of a blood dragon.
After the wise dragon helps you battle Alduin for the first time the Blades will demand that you kill Paarthurnax in revenge for his actions ages ago. If you don’t do this then they will never point out other dragon roosts to you which means no more dragon slaying assistance. Doing this for them has the side effect of angering the Greybeards to the point that they will no longer tell you where Words of Power may be located.
That said the big guy is easy enough to kill. Hit him with Dragonrend while he is still neutral to you and then lay into him with your strongest attacks. He goes down surprisingly fast. You traitorous dog.
Vinthuruth is something of a random encounter although he is quite dangerous. He attacks upon leaving a random dungeon, occurring at the end of a Thieves Guild quest in the video below. Depending on the location that this frost dragon attacks you in he may have an ally with him - either a fellow frost dragon or a weaker blood dragon. Just to be safe heal up before leaving any dungeons after you’ve obtained Dragonrend since that’s when he starts spawning.
One of the most dangerous random enemies in the game, Vuljotnaak is a very powerful elder dragon who attacks you en route to a Word of Power. This has occurred on the way to Greywater Gorge and Grey Crone Rock so it seems to be fairly random. Whenever he attacks you’re going to need to be on the top of your game since one solid breath attack can actually kill a weaker character, notably if you’re lacking hit points or resistance to fire.
Ancient’s ascent is located in the mountains to the east of Falkreath. There are two ways up the mountain to your destination. The first path is a mountain path up the side of the mountain - this path is often guarded by a dragon that attempts to weaken you before you can deal with the beast at the top of the route.
An easier way to get to the destination is by going through Bonechill Passage, a small cave with a Frost Troll in it. This is clearly the easier path so head on through it and battle the dovah.
Found southeast of Ivarstead up a twisted path through the mountains, getting to Autumnwatch is actually harder than fighting the dragon. Unfortunately there are a bunch of bears along the path to distract you terribly from what you’re trying to do. This will often be one of the first locations that the dragon hunters ask you to meet them at.
This is one of the easier dragon roosts to get to. Head south from Winterhold right through the woodlands and up into the mountains to find this. More often than not the dragon will find you instead, coming down to attack you long before even reaching the word wall. Be careful as there is a non-hostile Hagraven in the area you may hit that can cause her to become hostile to you.
Above: Just south of the current location marker
This one is a huge pain in the rear end to get to. You’ll get there by either climbing the mountain to the north of Rannveig’s Fast and going over or taking a winding path just south of Morthal. The path is much more dangerous since there are Frost Trolls along very narrow paths. If the dragon attacks here you’ll be in big trouble. Going over the mountain works best as it will often prompt the dragon to attack when you have wide spaces to hang around in and battle the beast.
Above: Found in the mountains to the southeast of Riften
Another easy roost to get to, this one simply tasks you with trekking through the wilds south of Riften and then going southeast up the path. It’s almost certain that the dragon will attack while you’re wandering toward the actual path so it shouldn’t be an issue to fight it somewhere safe. Once it’s dead you can continue up the mountain to find the word wall easily.
Above: Located southwest of Winterhold
This one gets tricky. The dragon likes to roam far and wide which can mean you’ll fight him before even starting up the mountain, or you could battle him in the narrow pass. The pass itself has snow bears, giants and sometimes even Frost Trolls to contend with and they tend to prioritize you over the dragon for some reason. In addition there is often a second dragon flying around that will attack before you even get a chance to deal with the first one. As an example in the video below, a regular Dragon attacks shortly before a Frost Dragon comes to play.