 Limbert set out on his third and most ambitious foray to the area in May 1920 , this time with Walter Cole and an Airedale Terrier to accompany him . Starting from Minidoka , Idaho , they explored what is now the monument area from south to north passing Two Point Butte , Echo Crater , Big Craters , North Crater Flow , and out of the lava field through the Yellowstone Park and Lincoln Highway ( now known as the Old Arco @-@ Carey Road ) . Taking the dog along was a mistake , Limbert wrote , " for after three days ' travel his feet were worn and bleeding " . 
