Chest (nature runes) - OSRS Wiki

Thieving from a Nature Rune Chest requires 28 Thieving, and each chest gives 25 experience upon looting. Once unlocked, these chests will lock themselves after 15 seconds. Players must right click and "Search for Traps;" failure to do so results in the player taking ⌊CurrentHitpoints×12100⌋+3 damage. The chest will always yield one nature rune and 3 coins when successfully opened.

Barrows - OSRS Wiki

Nature rune - OSRS Wiki

Shout out to the updated medium combat diary for making barrows

Crafting nature runes through the Abyss, RuneScape Wiki

Wilderness, Old School RuneScape Wiki

H.A.M. Store room, Old School RuneScape Wiki

Chest (nature runes) - OSRS Wiki

Kraken, Old School RuneScape Wiki

Ironman Efficiency Guide

Collecting nature runes - OSRS Wiki

Are nature runes getting farmed by a huge bot farm ? : r/2007scape

Chest (nature runes) - OSRS Wiki