Complex sentence: This development was a step backward for those who wished to preserve the land for its recreation uses, and in that same year the Moccasin Bend Association revived efforts to involve the National Park Service in the management of the land.
Split into simpler sentences: This development was a step backward for those who wished to preserve the land for its recreation uses. To combat this, in that same year the Moccasin Bend Association revived efforts to involve the National Park Service in the management of the land.