NPCs composing that spawngroup :

a_lunar_stonegrabber (5%)

a_natural_stonegrabber (5%)

a_stonegrabber (90%)

NPCs spawning around that spawngroup :
(Max range : 100)

dawnshroud1392070, range=46 (843,-1086,-177)

a_wolf (100%)

dawnshroud1392061, range=96 (850,-1139,109)

a_lightcrawler (100%)

a_hardened_stonegrab_1433536, range=97 (863,-1140,111)

a_light_stonegrabber_1433543, range=53 (823,-1080,112)

a_light_stonegrabber (10%)
a_stonegrabber (90%)