Complex sentence: Sabinoso Wilderness Area is surrounded by privately-owned land and there was no public access until 2016 when the Wilderness Land Trust, financed by the Wyss Foundation, purchased the Rimrock Rose Ranch for $3.150,000.
Split into simpler sentences: Sabinoso Wilderness Area is surrounded by privately-owned land with no route for public access. In 2016 the Wilderness Land Trust, financed by the Wyss Foundation, purchased the Rimrock Rose Ranch for $3.150,000.