Rainbow Trout Redd Locations in Cleopatra Creek and Iron Creek, Lawrence County, South Dakota, USA

For this study, rainbow trout (Oncorhynchus mykiss) redd surveys were conducted on two tributaries of Spearfish Creek, Lawrence County, South Dakota, USA.A 1.16 km stretch of Cleopatra Creek and a 1.88 km stretch of Iron Creek were surveyed weekly from 29 March through 26 April 2024.No redds were observed in Iron Creek.The first redds (eight in total) were observed in Cleopatra Creek on 19 April with 17 additional redds observed on 26 April.A total of 25 rainbow trout redds were documented.This is the first and only study to document rainbow trout redd locations and the timing of rainbow trout redd construction in any Black Hills stream.