Complex sentence: Bierstadt traveled with Theodore Whyte, the earl's associate, to the area and visited area sights where Bierstadt created sketches and paintings and the men looked for a suitable site for an English hotel with a great view of Longs Peak for the earl.
Split into simpler sentences: Bierstadt traveled with Theodore Whyte, the earl's associate, to the area and visited area sights where Bierstadt created sketches and paintings. The two men also looked for a suitable site for an English hotel with a great view of Longs Peak for the earl.