New Wissahickon Map
Using a mix of
the new data mentioned here (buildings and KP contours / veg),
OpenDataPhilly's Hydrology Shape data (all water), and
BBike OpenStreetMap data (streets, trails, etc). Used OpenOrienteering Mapper. Awesome!
Prints on a single 11"x17" sheet at 1:20k (no scaling). Scale and print your favorite bits @200% for 1x10k. Came out pretty good! I'm so impressed by these free datasets. OSM data really filled out the trails, too. I'm sure there are more in the park, but not too many.
Let me know what you think, Swedes and Sandy! It's scaled from 1:10k > 1:20k purely by shrinkage in Export > PDF, so likely pretty challenging to read 'at speed' ...