From the category archives:

state

Centene Stadium, Great Falls, Montana

by paul on July 31, 2013

Dehler Park, Billings, Montana

by paul on July 27, 2013

Mike Lansing Field, Casper, Wyoming

by paul on July 27, 2013

PK Park, Eugene, Oregon

by paul on July 6, 2012

Kindrick Field, Helena, Montana

by paul on July 22, 2010

Melaleuca Field, Idaho Falls, Idaho

by paul on July 21, 2010

Lindquist Field, Ogden, Utah

by paul on July 20, 2010