I am using a Delorme software package callled Topo USA 6.0 with a Delorme PN20 handheld and a PN40 handheld. I also use a Delorme LT20 GPS receiver with my laptop. This system is good for geograhical features. I can transfer pinpoints taken in the field to the laptop big screen. Lots of old mines are also searchable. It shows fire roads. Since it is discontinued, it can be purchased fairly cheap on ebay now.

My understanding is Delorme was bought by Garmin.

https://static.garmin.com/pumac/TopoNA9Manual.pdf