In 1831 James Clark Ross pinpointed this spot; later Arctic studies found it had moved more than 150 miles
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Read More ... 500 miles (800 km) between fixed anchor points on Ross Island 
to the west... [DOC] [TLE] July - State Cartographer's Office [PAR] Jul 3, 1985 ... Wisconsin Geological SUrvey now has ... path topographic mapping has 
fol1CMed in ... for qualitative studies in earth ..... that it had moved more than 60 
miles ... person team of geophysicists who found ... Clark Ross to be the first to 
locate ... the pole had moved 150 miles north to .... by James Flarmery.