I really like meditation tapes using binaural beats. I listen to https://synctuition.com/ meditations everyday when I exercise and it really helps. Source: about 3 years ago

I also like synctuition (there is a monthly or annual cost), and they are good at clearing the static from your brain. https://synctuition.com/. Source: about 3 years ago

I highly suggest checking out Natural Atlas (https://naturalatlas.com/) by the same small team who made the CoTrex app (https://trails.colorado.gov/) for Colorado Parks and Wildflife. A really fantastic team building some absolutely gorgeous topographic basemaps from publicly available data. Hopefully they'll find time to add a slope angle overlay at some point. - Source: Hacker News / over 1 year ago

I highly suggest Natural Atlas. The cartography is impeccable and they’ve been adding features over the last year. Source: almost 2 years ago

Try a recreational-themed map like naturalatlas.com. They will list most all known trails. Source: over 3 years ago