Ancestral Plains
Overview
Ancestral Plains is the largest map currently functional in the game. It features a large ocean and a variety of different terrains and landmarks able to be explored. Currently the map is the most widely used on servers both official and community-run, making it important to know where you're headed. If you are new to the game and this map, it is recommended you use a Pteranodon to fly around and get a feel for the landscape before you begin a journey as a terrestrial or aquatic creature.
Notable Features/Landmarks
Rivers
Ancestral Plains is currently the only map (besides Caldera) to feature one or more rivers. There are two on the map in total, one draining into a mid-sized lake and the other draining into the inland sea. Both feature varying strengths of current, able to pull and drag young creatures and poor swimmers with it. If a current exercises a strong enough effect on one's creature, there is a possibility of drowning. Be careful!
A well-equipped aquatic creature such as a Mosasaurus with speed talents or an Elasmosaurus may be able to swim up either of the rivers.
The Swamp
This map contains a mid-sized swamp, filled to the brim with fresh water and edible plants. While it is a great place to raise young on a sunny day, the area is very close to sea level, and floods easily during any type of storm surge. However, the tide does not normally reach the swamp. Also hidden within the swamp is one of a few possible entrances to a cave filled with comfort crystals.