You have advantage on Dexterity (Stealth) checks to hide in rocky terrain.
Stone Camouflage
Raw data
{
"srd": false,
"name": "Stone Camouflage",
"page": 282,
"type": "entries",
"__prop": "raceFeature",
"source": "DMG",
"entries": [
"You have advantage on Dexterity ({@skill Stealth}) checks to hide in rocky terrain."
],
"raceName": "Gnome (Deep)",
"basicRules": false,
"raceSource": "DMG"
}