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Sure ... but this is Massachusetts and the mountain peaks in question are 250 feet above see level. Not really a peak!

Haha! I might be running into the same problem here compiling my first Maine map. It looks like there are WAY too many as well.

BTW, I found some great data here for Maine for the Appalachian Trail and other parks, but I'm not real sure yet how to process it correctly:
http://www.appalachiantrail.org/site/c.jkLXJ8MQKtH/b.851255/k.4226/Appalachian_Trail_GIS_and_GPS_Data.htm

I'm still looking for outline data for hunting districts and wildlife management areas.

Summits as POI on the Garmin sounds like a good feature to me! Easier to identify peaks and search for them in the field.

No, I've got 32-bit Vista as my laptop is just a few months older than the 64-bit Core 2 CPUs sadly. :-P Anything requiring PostGIS I just run through XP in a virtual machine and it works fine, though slightly slower. I'd be curious if anyone else got PostGIS running in Vista, but perhaps that topic should be a new thread...

I will start on Maine maybe this weekend.

Hey Savage,

I've got everything downloaded for Maine now and I'm just getting started. I got the DEMs processed last week and I'm processing the NHDs today. I've not done some of this before so it's a learning curve and it's going slow. I can't get PostGIS to work under Vista without crashing, so some of this I've had to do under XP in VMWare, which is far slower. Sigh... It's been a fun learning experience though! Let me know when you get your Maine map done, I'd like to compare results...

Honestly, I haven't really figured out how to use Global Mapper yet. I've done GeoTiffs with Dem2Topo quite a bit, but my first real experience with Global Mapper was trying to follow the tutorials. I'm waiting to read the remaining unwritten articles to understand what to do with the files that Global Mapper created. I couldn't find a way to export as shapefiles or anything that I'm already familiar with, it was all grayed out. There's a step I'm missing and don't quite understand yet I guess.

At the moment, I've got the whole state of Maine (10-meter I believe) in ArcGrid format and I've got Penobscot County in GeoTiff. I'll probably finish my county the way I'm already familiar with using Dem2Topo, OpenStreetMap, etc. I'd like to see how Oz is doing some of the other cool stuff though like railroad tracks, power lines, etc. This should be a pretty sweet site when all the tutorials get finished.

Yup, I pretty quickly figured that the 12-digit watershed wasn't what I needed, though I wasn't quite sure what it was until your explanation. Thanks. I've already got all the 8-digit subbasins for Maine from NHD. I actually found it to be easier and less tedious than all the NEDs I'm still waiting on. I was kinda hoping to find everything on one convenient site, but oh well. Hehe!

Well, this was disappointing. I downloaded the 12-digit (haven't tried 8-digit yet) watershed dataset as one shapefile unfortunately and found that practically unusable for GPSMapEdit, and I can't re-request the same data in multiple shapefiles for another 5 days. The geographic names were severely lacking compared to data from GNIS. And 10-meter NED was only available in GeoTiff format, but I'd like to try ArcGrid with Global Mapper instead of individually processing each .tif with Dem2Topo.

So much for hoping to find one easy batch download of states/counties. The TerraServer ortho imagery from this site looks promising though.

Wow, looks like I can download 10 meter for all of Maine under the 4GB limit. Thanks for sharing this site!

I wonder if the 12-digit watershed is as good or better than the USGS NHD database?

Nice tool, thanks! I've been looking for just such a calculator for some time and wondering why no one had made one. Now I can toss my spreadsheet.

It would be most useful in the field if you could make a version for PocketPC and Palm devices! 

I stumbled across this site today looking for a way to convert GNIS data into a shapefile for my Garmin 60CSx. Wow is there a lot of good stuff here! Thank you very much for putting this site together. I look forward to the rest of your tutorials with great anticipation!