While to capture this kind of RS gold Salamander you require only 59 hunters, it is suggested to start this method from 60. Once you reach this stage, you'll be able put up four traps at once rapidly increasing your rewards.
To get to this location you will need Lunar Spellbook spell Ourania Teleport (71 Magic) or Castle Wars teleport. After you arrive near Castle Wars head north until you reach a location that is lava-filled. You can hunt for Red Salamanders at the location by placing traps. Bring along with you 4 reels with 4 nets for traps. Then, you can begin the hunt.
On levels as high as 80, you'll be looking to make some money while you train your Hunter. One of the best options to start with is to use Red Chins. They're highly profitable because the majority of players are using these to boost the speed of cheap OSRS GP training skills in the Ranged area.