masks required With New Addition Of Colorado, Half Of Mountain West Now Mandates Masks In Public By Rae Ellen Bichell • Jul 19, 2020 Colorado is the latest state in the Mountain West to issue a mask requirement, joining Nevada and New Mexico. Gov. Sisolak Announces Masks Are Mandatory In Public Settings By Lucia Starbuck • Jun 25, 2020 Eric Marks / This Is Reno Nevada has seen a surge in COVID-19 cases and a steady increase in hospitalizations for the virus since the state entered phase two of Gov. Steve Sisolak’s reopening plan. In an effort to curb the spread, the governor signed a directive Wednesday that requires people to wear masks while in public, effective Friday. KUNR’s Lucia Starbuck covered the governor’s press conference this week for our media partner This Is Reno, and has the details.