Bitterroot Security & Investigations, LLC Share: Business ServicesBusiness Consultants Bitterroot Security & Investigations, LLC 410 9th St Clarkston, WA 99403 (509) 758-3907 (208) 746-8274 (fax) About About Security, Investigations, and Patrols serving the L-C Valley and surrounding areas. Our focus is serving our community, making it a better place in which we live.