The folks at Strava pointed me to you as they said they rely on Open Street Map data and it appears on their maps / biking data that the Enola Low Grade Trail / Bike Crossing over Pequea Creeks shows an incorrect altitude gain across the bridge (of approximately 150 feet). The bridge is level so there should be little if any altitude gain when crossing it. It looks on the map like the trail stops and then descends a grade and climbs a grade on the other side of the creek. This might contribute to the incorrect elevation.