In the mid-1950s, husband and wife Lou Paul Spring and Geraldine Spring (known as Paul and Gerry) bought a small remote building in Idaho, less than four miles from the Canadian border, and remodeled it into a tavern. Legend has it that Paul bought it without consulting Gerry, and when she heard about it, she exclaimed “Good Grief!”—and a name was born. But as is often the case, that legend is wrong. In reality, the pair had been running the tavern for several weeks together before they figured out a…