Juvenile and Adult
- Rostral scale large, upturned and keeled above
- Round pupils
- Scales keeled (ridge lengthwise on each scale)
- Three to four rows of distinct or slightly faded dark brown blotches along length of back; two to three rows of small blotches on sides of the body; throat is white; belly black with checkered pattern of orange, yellow or white
- Background colour: brown to gray
Body length: up to 75 cm
Range
- Restricted to the short-grass prairie in the southeast corner of the province, with soils suitable for burrowing
May be confused with Prairie Rattlesnake.