After a lot of research and trying various navigation apps, I have taken out a subscription for one year with Topo Gps. It really is very good and a great replacement for Viewranger.
Lorraine McCall began her attempt today at a continuous, self-powered round of the Grahams, a four-month tour of upland Scotland combining walking and bikepacking. If successful, she'll be the first person that we know of to do it.
