Yeah, I just paid for the map pass from mytopo. I like it pretty well, can print custom maps with framed UTM/lat/long/ scale info, just a little sluggish. I love HIllmap.com but haven't had much luck printing. So I started looking elsewhere but have not been able to find any reasonable GIS software for mac. TerraGo toolbar is a plugin for adobe acrobat/ reader which should allow manipulation of USGS pdf topos but it's only available for, you guessed it, Windows.
I wanted to try out topo fusion, I even thought about using parallels or the like so I could run it on a virtual windows machine but that's a hassle.
Joined: Tue Nov 16, 2010 11:41 am Posts: 278 Location: Altadena SoCal
Last year, when this thread first popped up, I thought, "Cool. Side by side topo & imagery. About as useful as MyTopo." I bookmarked it and played around for a while. Apparently in Feb, they went through a revamping. It's fuggin' amazing now.
Tours, El. profiles, drag-n-drop kml integration. Yay. NBD. Seen it before.
I just discovered 'points' and overlays. Points - It takes el. data within a given radius and interpolates aspect and slope. Perfect for post-hoc snowpit reporting. Once you have your point, there are two buttons: NOAA - weather forecasts for that location, at that altitude (no more hunting around for your desired plot on the tiny NOAA map); AND Peakfinder.org - takes you to a site which interpolates surrounding el data from that location into a horizon and identifies peaks in panorama. BTW, they have an app which works offline. Overlays - just like it sounds and here are some your options... *SNOTEL - remote snow depth and density data. (Hunt for pow from your living room). *NOAA integration - Weather forecasts for that specific point and altitude *CalTopo slope - Gradient, color coded slope-angles super imposed onto your topo map: green (< 26°), yellow & orange, red (35–40°), purple & blue, and black (>60°). *I need a 'Jaw drops to floor' smiley* You can instantly find the safest or gnarliest route.