March 5, 2026:
A 65 year old Spearfish man died in a single vehicle crash Saturday evening (Feb. 28, 2026, at 8:05pm) near exit 10 on Interstate 90.
Preliminary crash information indicates Mark Alan Anderson, the driver of a 2012 Toyota Highlander, was traveling west on I-90 and took Exit 10 to the intersection with US 85. The vehicle continued westbound across US 85, entering the west ditch, vaulted a fence, then went into the Brook View Road ditch where it overturned and came to rest on its roof. The driver was ejected.
Anderson was transported to Spearfish Monument Health where he was pronounced deceased.
The South Dakota Highway Patrol is investigating the crash.
The Highway Patrol is an agency of the South Dakota Department of Public Safety.
March 1, 2026:
A 65 year old Spearfish man died in a single vehicle crash Saturday evening (Feb. 28, 2026, at 8:05pm) near exit 10 on Interstate 90.
The name of the person involved has not been released pending notification of family members.
Preliminary crash information indicates the driver of a 2012 Toyota Highlander was traveling west on I-90 and took Exit 10 to the intersection with US 85. The driver continued westbound across US 85, entering the west ditch, vaulted a fence, then went into the Brook View Road ditch where the vehicle overturned and came to rest on its roof. The driver was ejected.
The driver was transported to Spearfish Monument Health where he was pronounced deceased.
The South Dakota Highway Patrol is investigating the crash.
The Highway Patrol is an agency of the South Dakota Department of Public Safety.






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