PATC Maps

Geospatial micro blog from professional Cartographers who locally create and update topographic maps along the Appalachian Trail and Washington DC metro area.

[PATC Maps @PATCmaps]

A nice addition to a thru hike perhaps?

[John Nelson @John_M_Nelson]

Please do not look at this Appalachian Trail journal field map. https://t.co/uQakPpe5eC

[PATC Maps @PATCmaps]

Anyone planning on a President's Day hike? A leisurely stroll or a grueling 10 miler? What about a 3-day backpacking trip? Let us know and share some pics.

[PATC Maps @PATCmaps]

Thank you for your service.

[Tom Patterson @MtnMapper]

The day that was always “a few more years away” finally arrived: I retired from the US National Park Service. I will miss it. But now looking forward to getting outdoors more, volunteering with NACIS, working on independent map projects, and just having fun.

[PATC Maps @PATCmaps]

If you’re reading this, it’s probably because you’re not hiking. #NationalTrailDay #putdownyourphone

[Thom of Fauquier @ThomGavinKaye]

America is growing! Look out Canada here we come! https://t.co/ItfxZt6ewv

[PATC Maps @PATCmaps]

Our contemporary cartographer Mr. Tom Patterson. @MtnMapper revolutionized the way shaded relief is portrayed. Do yourself a favor and give him a follow. https://t.co/vW3bPKjldH

[Tom Patterson @MtnMapper]

Adding a hint of Landsat spiced up an otherwise ordinary map of Petrified Forest National Park, Arizona, in the Painted Desert.

[Thom of Fauquier @ThomGavinKaye]

Geography lost a pioneer in geospatial sciences today. RIP to Waldo Tobler whose First law of Geography helped me recognize the connected world we live in. "Everything is related. Nearer things are more related to distant things".

[PATC Maps @PATCmaps]

Looking for some "Raw Water"? Go for a hike. https://t.co/8juNfnB6cV

[PATC Maps @PATCmaps]

This. https://t.co/wuUYtlwifc

[PATC Maps @PATCmaps]

. @USGS "When cartography was an art?" You apparently haven't seen our modern maps.

[ShenandoahNPS @ShenandoahNPS]

@ShenandoahNPS These trail closures are related to widening the search area for Nicole Mittendorf.

[ShenandoahNPS @ShenandoahNPS]

The following trails are closed: Limberlost Trail, Cedar Run Trail, Cedar Run Link Trail, and Crescent Rocks Trail.

[Department of War 🇺🇸 @DeptofWar]

Happy 240th Birthday @USMC! #OORAH!!! #SemperFi

[PATC Maps @PATCmaps]

A short break for your sore feet along the AT, may reveal a subtle gesture of more. #ChesterGap

[Christopher Miller @CmillerPEC]

Hikers on Ambassador Whitehouse Trail @AT_Conservancy @PATCmaps enjoy native wildflower meadow @piedmontenviron

[PATC Maps @PATCmaps]

The AT contains many spring-fed lakes. Ever wonder what they look like underwater? https://t.co/1Gpjgp37nH

[PATC Maps @PATCmaps]

Is Floyd Hough Americas greatest unknown Geographer? http://t.co/VJkZZR5uSf #geodesy #worldwar2 #veday70

[AppMountainClub NYNJ @AMCNYNJ]

Update - Nearly 50 @nynjtc trail maps are now available in smartphone/tablet versions http://t.co/E88iTAHDpu

[PATC Maps @PATCmaps]

If you find yourself in D.C. this weekend, learn how the "Longitude Problem" was solved. #geography #maps http://t.co/3QM4wHqjIE

[Eric Menendez @ericrmenendez]

Old vs. new -- planning tomorrow's hike. Thanks @PATCmaps and #caltopo!