“Summer of Gravel and Steel: a thru-hike of Alaska, 20 years after the first”. Fairbanksan Ned Rozell is perhaps best known for the science and natural articles he writes for the University of Alaska’s Geophysical Institute (which are distributed to Alaska newspapers) and his earlier book “Walking My Dog, Jane.” He now refers to that earlier book as a “prequel” to his new one. Both recount walking 800 miles along the Alaska Pipeline corridor, from Valdez to Deadhorse, during the summer months, first in 1997 and then again in 2017. Each time he was accompanied by a canine companion – first Jane and then Cora.