Welcome to Mat-Su Valley Alaska. The views of Denali and unspoiled wilderness are grand, the lifestyle simple and there are no limits on adventure. Mat-Su, Alaska has it all! Convenient to both Anchorage and Denali National Park, easily reached by car or the Alaska Railroad, the Matanuska-Susitna Valley sprawls across 23,000 square miles of pure Alaska wilderness. Towering mountains, huge glacier valleys, fish-filled rivers and lakes, abundant Alaska wildlife, glorious hiking country, scenic camping and quaint frontier communities - the Mat-Su is what Alaska visitors dream about.