The current size of the Cottonwood Gulch fire north of Manhattan is 8.300 acres and it's 15% contained as of Tuesday morning. Here's the latest official word.
The official Press Release from Gallatin County Emergency Management:

  • Date and Time of Ignition: October 11, 2015, 11:15 AM
  • Cause: Human-caused, under investigation
  • Size: 8,300 acres
  • Containment: 15%
  • Structures Burned: 1 outbuilding

Crews continue to mop up in all divisions around the perimeter of the fire. Burn out operations in some areas will produce smoke intermittently throughout the day.

Unburned islands will also continue to put up smoke today, particularly during the heat of the day.

A weak weather front is expected to pass through this afternoon with expected wind gusts of 20 mph.

Control lines will be tested during this time and firefighters are postioned to respond to specific areas of the line which are the most vulnerable.

Multiple resources are assigned in the Gallatin River Ranch to cool the line and reduce the threat to those homes.

Interagency cooperation continues to be strong on this fire. Agencies providing equipment and support include engines and tenders from many local fire departments in the Gallatin Valley; the Gallatin County Sheriff’s Office; Gallatin County GIS; Gallatin County Road and Bridge Department; DNRC management staff and helicopters and engines and crews from several National Forests in the region.