Rhode Island has two distinct regions: the lowlands of the Narragansett Basin and southern coast and the upland's rolling hills of the north and west. Rhode Island's highest point is only 812 ft, Jerimoth Hill, in Foster.
Terraria How to get Mana. New characters start the game with 20 maximum natural mana, but more mana can be obtained by collecting Fallen Stars and crafting them into Mana Crystals which will allow a player to increase their mana up to a maximum of 200 (not including equipment modifiers).
Mana abilities are similar to those of activated, I would say they fall under the tree of activated abilities, these are activated abilities which add mana to your mana pool, such as Izzet Keyrune . The keyrune has both activated and mana abilities.