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Helena, MT
p. 406.442.5768
f. 406.449.6653

Billings, MT
p. 406.896.1716
f. 406.896.1725

Air Quality and Environmental Consulting

Since 1980, Bison Engineering has provided professional environmental consulting in the area of air quality permitting, stack testing and ambient air monitoring.  In addition to these services Bison Engineering also provides an array of other environmental services through our environmental engineers and associates to complement our air quality expertise and to meet the environmental needs of our clients! Bison offers our clients a clear advantage in achieving the delicate balance between a healthy environment and a thriving industrial economy.

Hal Robbins Story

Hal Robbins, longtime president of Bison Engineering, announced his retirement last year, but doesn’t have plans to slow down anytime soon. Robbins has his sights set on his passions of golf and skiing, and will also be dedicating some time volunteering for a few of his favorite organizations, including the Montana Mining Association.

Robbins stepped back from his duties as president of Bison Engineering in July 2013, handing the reins over to Jeff Chaffee, who was vice-president. Robbins is continuing to work part-time for Bison Engineering on several key projects, at least through 2014.  

Full Story....... Montana Mining Association Magazine









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Bison is a proud member of the following:

Montana Coal Council
Montana Petroleum Assoc.
Montana Mining Assoc.
Montana Wood Products Assoc.
Petroleum Assoc. of Wyoming
Western Environmental Trade Assoc.
North Dakota Petroleum Council

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