Location: Glenn Hwy and Parks Hwy, Matanuska-Susitna Boro. Reassurance shield after the Parks Highway exit as the character of Alaska 1 quickly and dramatically changes. Location: Glenn Hwy and Colony Way, Palmer Exit right for an unofficial Palmer business loop. Location: Glenn Hwy and Arctic Ave, Palmer Reassurance shield a few blocks later. Location: Glenn … Continue reading Alaska Route 1, AK-3 to AK-4