Idaho Outdoor Fieldhouse will serve Mission 43 and the Challenged Athletes Foundation The J.A. and Kathryn Albertson Family Foundation bought nearly seven acres from the City of Boise so they can build a new 50,000 square feet facility next to the Boise River and Marianne Williams Park. and last updated 2021-07-09 16:49:28-04 BOISE, Idaho â The J.A. and Kathryn Albertson Family Foundation bought nearly seven acres from a private landowner in eastern Boise so they can build a new 50,000 square feet facility next to the Boise River and Marianne Williams Park. The Idaho Outdoor Fieldhouse will be the new home to veterans and adaptive athletes, it will feature an aquatic center, a multi-purpose gym, a fitness area, a large gathering area, short-term housing and a hyperbaric oxygen therapy wellness center.