Please help where do these go on a map

Explanation:

The boxes are shaped in this order from top to bottom

A

                                                                 B

                           C

D

                                            E

A: Is either the very seep region or 2660. There's not enough information to tell which.

B: I take this to be a very steep region. 2750 is above 2500. The lines are very close together, but the general direction is up. The answer can also be 3300.

C:  The river flowing east. (and then going south).

D: I don't see anything representing D. D should be coming down from 2500. The consequences of that not being true is that the river will not flow through the line marked 2500.

E: Depression                        

idk

explanation: