The Poudre Valley Health System is in critical need of blood donations, according to a recent press release. Blood types O negative and O positive are especially needed. The Garth Englund Blood Donation Centers are the official blood donation centers for the PVHS, and are located in Fort Collins and Loveland. The center in Fort Collins is located at 1025 Pennock Place, Suite 104. The center in Loveland is located at 2500 Rocky Mountain Avenue. Donors must be 18 or older. New donors must also weigh more than 120 pounds and be in good health.