Quick Note: Try and make sure you are doing dailies as often as you can.
There aren’t quite enough quests in the desert … And you really need to be 49+
before heading to The Rift. You might find yourself grinding some at 48 if you
aren’t religious about dailies (or if you just play a ton and level fast 
Level Progression:
End of Sand:
Wind’s End:
Sdukar:
Guardian’s Rest:
Traveler’s Home: – Mailbox
Crimson Tower: Antoria: – Mailbox / Storage Box / Auctioneer
Dustwind Town (oasis SE of Crimson Tower: Antoria):
Small Camp (slightly West of Crimson Tower: Sacrathar):
Daily Quests:
End of Sand: Resistance of Eristars (Daily) from Jirasacles [lvl 39 rcmd]
Sdukar: Demon Loot (Daily) from Oziwads [lvl 42 rcmd]
Sdukar: Keeping the Roads Clear (Daily) from [lvl 42 rcmd]
Guardian’s Rest: Demon’s Blood (Daily) from Anataavian [lvl 43 rcmd]
Crimson Tower: Antoria: Saithion Coastwalkers (Daily) from Allon [lvl 45 rcmd]
Dustwind Town: Shell Necklaces (Daily) from Oireus [lvl 46 rcmd]
Dustwind Town: Ankar Nomads (Daily) from Olarmis [lvl 46 rcmd]
Crimson Tower: Antoria: Sacrathar Flamen (Daily) from Asdemoras [lvl 47 rcmd]
Hidden Camp (west of CT:S): Crimson Emblem (Daily) from Kuduin [lvl 47 rcmd]
Repeatable Quests:
Wind’s End: They Belong in a Museum from Salingoond (Saithion Statue x10)
Sdukar: Those Who Forget the Past… from Katuburus (Demonic Scriptures x10)
Crimson Tower: Antoria: Scarlet Stones from Ranwiir (Scarlet Stone x10)
By: Shotah