I've been poking around the Internet with the keywords "google map elevation". I've been to some sights and I get quite a range of elevations. But the upshot is that Strava has almost doubled my elevation. The best I can determine is that I gained about 140-160 meters. That sounds more like it. Although I prefer what Strava said since it makes me more badass

I dunno. I'll do more research. In the meantime try this website and tell me what you think.

veloroutes.org - create a bike route map with elevation profile