The Bismarck Boy Scouts and Girl Scouts are participating in a blood drive challenge from 11 a.m. to 7 p.m. Monday at the Kirkwood Mall.

The challenge allows donors to choose which group they want to donate blood on behalf of, the Boy Scouts or the Girl Scouts. Several side competitions between the scouts are planned. The winner of the challenge will receive a trophy.

Volunteer blood donors must be 16 years old or older, weigh at least 110 pounds and be in good health.

To schedule an appointment at the office call 258-4512 or go to www.unitedbloodservices.org.