Area 123 in Wyoming is known locally as Yellowtail. This is due to the presence of Yellowtail Reservoir in this small unit. This area is found at the base of the Bighorn Mountains on the west side and is home to mule deer and whitetails. The Bighorn Basin reaches to the south and west and provides open expanses. For nonresidents, this area is part of Region X and tags drawn for this area are also valid in: 121, 122, 124, 127

This area is small in physical size but can hold potential for bucks that fly under the radar. Mule deer numbers are not high, but quality bucks can occasionally wander through. This area offers a hunt for whitetails on a predominantly desert terrain area.