Glacial Erratic / Day 31 / Letcher, South Dakota / Mile 1,400. Photo by Chris Register/www.conversationswithus.com
![Glacial Erratic / Day 31 / Letcher, South Dakota / Mile 1,400. Photo by Chris Register/www.conversationswithus.com Glacial Erratic / Day 31 / Letcher, South Dakota / Mile 1,400. Photo by Chris Register/www.conversationswithus.com](https://dakotafire.net/wp-content/uploads/2017/01/IMG_20160816-Glacial-Erratic-660x330.jpg)
Glacial Erratic / Day 31 / Letcher, South Dakota / Mile 1,400. Photo by Chris Register/www.conversationswithus.com
Glacial Erratic / Day 31 / Letcher, South Dakota / Mile 1,400. Photo by Chris Register/www.conversationswithus.com