Nearly perfect

Ive used this app for a number of years. The map quads are real usgs maps and best of all is the stitching that adjoins the quads into a multi quad view. Im a rock hound and geologist and spend a lot of time in Nevada . You can see yourself while driving along the dirt roads and this feature is priceless for finding overgrown roads that would otherwise blend into the surroundings.
The only drawback Ive found is the lack of private property delineation.

Crystaldig about Topo Maps, v1.15