322J: The Mountaineer Children (and Dog)

Title: The Mountaineers – A children’s book from the 40’s
I am not sure that this is the correct title, as I have been unable to find it though any searches.  However, the book had a wonderful illustration on the cover of a number of children and a large dog climbing a mountain or hill.
I don’t remember much about their adventures, but the book was re-printed in the 70’s with the same cover illustration.