From May to November 1898, he participated in a geological expedition headed by K. J. V. Steenstrup to the Disko Bay region at the west coast of Greenland. From this expedition Moltke made paintings of geological structures, a.o., the coast line of Nugsuark Peninsula, and of the Inuit, a.o., "Greenland women in umiak". During July 1899 to April 1900, Moltke joined an aurora expedition to Akureyri in Iceland.. The expedition was arranged and headed by the director, Adam F. W. Paulsen, of the Danish Meteorological Institute. Further participants were Dan Barfod la Cour, director of DMI 1923-1942, and Ivar B. Jantzen. In Akureyri, Moltke made 19 paintings of auroras and 5 portrait sketches of the expedition members. In the winter 1900-1901, Moltke participated in another DMI aurora expedition; this time to Utsjoki in northern Finland. This expedition was headed by Dan B. la Cour. Further participants were Carl Edvard Thune Middelboe and Johannes K. Kofoed. Here, Moltke made, a.o., 6 paintings of auroras. The aurora paintings from the two aurora expedition belong to and reside now with the Danish Meteorological Institute. During 1902-1904, Harald Moltke joined The Literature Expedition, headed by Ludvig Mylius-Erichsen, with Knud Rasmussen, Jørgen Brønlund and Alfred Bertelsen. The expedition was a dog sled journey along the unmapped north-west coast of Greenland from Upernavik to Cape York close to Thule. From this expedition his main works are a set of 30 portraits of Inuit, issued in 1903. He also illustrated the book with Ludvig Mylius-Erichsen as author. From 1907-08, he was employed at the Royal Copenhagen porcelain factory and from 1908-14 for the porcelain factory Bing & Grondahl. During the later years of his life, Moltke made numerous paintings, particularly portraits and landscapes, and published his memoirs in two volumes: and . His works are on display at the National Museum of Denmark in Copenhagen and at museums in Hillerød and Helsingør. Cape Harald Moltke in North Greenland and Harald Moltke Glacier were named after him.
Personal life
He married Else Moltke on 30 March 1910. She was a daughter of Otto JoachimAdam Moltke and Ingeborg Agnes Valentiner. Else Moltke was the author of several books, mostly historical causeries and memorial sketches. They were the parents of Rose and Alette. Harald Moltke died during 1960 in Frederiksberg. He and his wife were buried at Reerslev Cemetery.
