Paul Robert Block, 56, of Livermore, Colorado, formerly of Rochester, passed away Tuesday, May 15, 2018 at his home. He was born on March 26, 1962 to Russell Block and Joanne Zeitler (Jefferis). Shortly after beginning college he moved to Colorado where he lived for 36 years. He completed his degree with Colorado State University and continued to work for the University as an ecologist for 33 years. Paul loved snowmobiling and enjoyed his time riding with his friends at Teddy Roosevelt National Park. Paul is survived by his mother, Joanne; sister, Karen (Charlie) Winans; brother, Richard Block; and nieces and nephews, Alex, Kevin, Kellie and Kyle. He is preceded in death by his father, Russell; brother, Chris; and sister, Renee. A private family service will be held at a later date. Hoff Funeral and Cremation Service, St. Charles, is assisting the family with arrangements.