From digging for fossils in the Pembina Gorge to hiking through the Badlands, walking an alpaca or descending into a former nuclear missile facility, Alicia Underlee Nelson believes there is much more to North Dakota than even longtime residents may realize. Nelson, a North Dakota-based travel writer, explores those experiences in “100 Things to Do in North Dakota Before You Die,” a guidebook published by Reedy Press in August. The book takes re…