I completed Craglorn. I had avoided questing the area because I was under the impression that all quest required a group.
I am happy to say that I was able to complete the main quest line, gather skyshards, and collect all of the achievements in a single day.
"The Corrupted Stone" requires 3 people to activate plates.
"Missing Giardian" requires 4 people to activate 4 pillars to open the waterway.
The quest at Spellscar also requires 4 people but this is not a main quest.
The rest can be done solo but I recommend a friend or two to speed up the process.
Thanks to the people who helped me last night. I actually had a lot of fun in Craglorn once I found a group. Just wish the XP and loot were more rewarding.
PS4: NA - AD PSN: imnotanother (Artell Lyeselle)
Stamina NightBlade 810+ CP - PvP/Trials/Dungeon Ready