‘Depot Hill Gas’ preserves Boulder’s past

Look to the left, or to the right, depending on your direction driving along I-15 south of Boulder. 

Up on the hill is what looks like a tiny gas station from another era — the 1940s, 50s, perhaps?

There are two “Frontier Gas” pumps and a couple of buildings flanking the station, one with an older “Pennzoil” sign.