Complex sentence: This gap was used by Australian National Antarctic Research Expeditions (ANARE) parties in 1957 and 1958 as a route through the range, and was named by ANARE for its proximity to Mount Hordern.
Split into simpler sentences: This gap was used by ANARE (Australian National Antarctic Research Expeditions) parties in 1957 and 1958 as a route through the range. Named by ANARE for its proximity to Mount Hordern.