Rediscovering bikes and exploring Baltimore after a 5 year hiatus from cycling.
REI, MTB and Hiking Project - It’s worth looking at both. Have realtime trail condition updates.
RideWithGPS - Lots of map layers (Google, Satellite, USGS, OpenStreetMap Cycling, etc)
BikeGPX - Turn by turn navigation, like Google’s phone app while driving, but with the route you’ve pre-selected