There are two expeditions heading out from New Unity this week.
Dr. Winter and @ELIZA9 - Are working on tracking and observing the Grazers (AKA - Charlie and his kind). I believe they have a protective detail going with them as well.
I don't know the details of that expedition as it's being headed by Dr. Winter and Eliza so please direct your questions on this to them.
Myself, @AdenWalker , Voke, and @Drea-Anderson - Are going on a survey mission to study the geography and geology between here and the river and the area at/around the river. This will be done with an eye towards discovering useful resource deposits and geographical features, also checking the river itself for any useful/edible flora and fauna. Adrien is our only Weapon-Capable team member I am aware of so far.
If it turns out Charlie has headed out in the direction of the river, perhaps the two expeditions can be combined. But as of now, only the Geological team knows which direction it's going to be heading.