Complex sentence: At Santa Fe de Bogota he was attached to the staff of General Bolivar as colonel and traveled widely in the northern parts of the continent, climbing to a new highest altitude by a Western explorer on Chimborazo in the process.
Split into simpler sentences: At Santa Fe de Bogota he was attached to the staff of General Bolivar as colonel and traveled widely in the northern parts of the continent. He climbed to a new highest altitude by a Western explorer on Chimborazo in the process.