* Any challenge mode you've beaten in Gold rewards you a teleport path to its location you can use to move around the map quicker, this is a shared 8hr cooldown between all dungeon locations, but still useful for 1 quick easy teleport.
*Use your hearthstone! Personally I set mine to Shrine of Seven Stars for convenience because this seems to be the most centralized location relative to archaelogy digsites.
*Stock up on those lodestones that teleport you to a random digsite. You can purchase them for 1 crated artifact at the turn-in location, you can only carry 20 maximum but they are nice to have for a quicker grind.
* Also buy a few maps that randomize digsites. These also cost 1 crated artifact. I can't recommend these as much because they remove 1 digsite as well and sometimes the new dig site is in a crappy spot. But if you have Dungeon Challenge Teleport/Lodestone/Hearthstone all on cooldown and all your digsites are far away this is when I would use it.
*As with any grind, find some good music/podcasts/videos, something to keep you occupied as this is a fairly lengthy grind.