Friends of State Parks, Mat-Su Share: Community & Non-profit Friends of State Parks, Mat-Su Visit Website 1150 S. Colony Way Suite 3, PMB 323 Palmer, AK 99645 (907) 232-3328 Facebook About About Friends of State Parks (FoSP), Mat-Su is a registered 501 (c) 3, working to enhance and protect the natural, historical and recreational resources within the Mat-Su/Copper Basin State Park units.