The new book group I've contacted for information about their selections has sent me this review for one of their books:

After a close friend died of cancer, middle-aged, overweight, acrophobic newspaperman Tom Ryan decided to pay tribute to her in a most unorthodox manner. Ryan and his friend, miniature schnauzer Atticus M. Finch, would attempt to climb all forty-eight of New Hampshire’s four-thousand-foot peaks twice in one winter while raising money for charity. It was an adventure of a lifetime, leading them across hundreds of miles and deep into an enchanting but dangerous winter wonderland. At the heart of the amazing journey was the extraordinary relationship they shared, one that blurred the line between man and dog.

This was what was named as Finding Atticus by Laurie Gifford Adams but when I went to look at the publishing date on Goodreads, the summary didn't match. While this description is familiar, I can't name the book. Does anyone know? Thanks in advance.