Chiara Zonca for The New York Times A snowy morning in Rondane Natonal Park, the location of Sohlberg’s painting, “Winter Night at Rondane.” Chiara Zonca for The New York Times Trees reflected in the ...

The National Park Service also noted that the 102-acre area around the pond includes steep ledges and small hills that were carved out by the glaciers, known as glacially abraded, granitic monadnocks.