iPhone app CalTopo

CalTopo for iOS extends your adventures from the desktop to the field.
CalTopo contains tools to plan your backcountry adventures including offline topographic maps and aerial imagery, slope angle shading, viewshed analysis, realtime SNOTEL and weather data, and many more options.
The mobile apps integrate seamlessly with the CalTopo website allowing realtime syncing with the web application allowing updates to maps and routes to be passed back and forth (while you still have cell service).

If youre traveling off the grid you can download mapping layers and maps that youve created to help guide you on your adventures.
When youre back you can sync the record of your journey back to the CalTopo website.
No more cumbersome exporting and importing from other apps.

Plan your next adventure today!

Layers Available: (*Indicates Offline Availability)

Map Builder Topo*

Map Builder Hybrid*

Scanned 7.5*

FS Topo*

Marine Charts

FAA Sectionals

NAIP Imagery (Various Years)*

Shaded Relief

USFS/NPS Visitor Maps

Satellite Daily and Weekly Layers

(Note: Weekly High Res layer requires Pro subscription)

And more.

Overlays Available:

Contours*

Map Builder Overlay*

Slope Angle Shading* (LIDAR slope angle shading available on/offline)

Parcel Data (Note: Requires Pro subscription)

Public Lands

Motor Vehicle Use*

Realtime weather and SNOTEL data

And many others.,

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