I've seen Lazulis at Bobcat Ridge Natural Area (Fort Collins) and MacGillivray at Crow Valley and Barr Lake State Park. Also:
Lazulis (Place/County):
Cottonwood Canyon Baca
Doudy Draw and the Mesa Trail Boulder
Castlewood Canyon State Park Douglas
Ute Valley Park El Paso
Kebler Pass (CR 12) Gunnison
Red Rocks Park Jefferson
Waterton Canyon Jefferson
Lower Poudre Canyon Larimer
Unaweep Canyon Mesa
Lone Dome State Wildlife Area (Montezuma section) Montezuma
San Miguel River Montrose
Big Gypsum Valley San Miguel
MacGillivray:
Gregory Canyon Boulder
Mount Evans Clear Creek
Lake San Isabel Custer
Glade Lake Dolores
Jarre Canyon Road and Platte River Road Douglas
Tigiwon Road Eagle
Hayden Creek Campground Fremont
Rifle Falls Fish Hatchery Garfield
Golden Gate Canyon State Park Gilpin
Pine Valley Ranch Open Space Jefferson
Uncompahgre Plateau Montrose
Crystal River Valley Pitkin
Fish Creek Falls Routt
Spud (Potato) Lake San Juan
Alfred M. Bailey Bird Nesting Area Summit