Naturewatch Apps
NatureFind
Find parks, forests, nature centers and activities near you using a handy city and zip code search engine.
Oh, Ranger! ParkFinder
Locate public lands including national parks, state parks, national forests, and wildlife refuges. Search by 20 activities available at different sites.
The app is intended for general public for interactive use. The app offers feature such as birds and frogs sounds, trails, directions and useful Forest information.
Backcountry Navigator PRO GPS
Explore beyond cell coverage for topographic maps to use when navigating backcountry.
All Trails
Explore over 40,000 trails, find reviews and share photos out on the trails.
Trails – GPS Tracker
Check out new trails and track your pace, ascent and descent.
GoogleEarth
Virtually ‘fly’ around the planet to view cities, homes, and businesses. Browse layers including roads, borders, and photos; and use the new “tour guide” to easily discover exciting new places to explore.
Maplets
Download and use maps on site without internet connection.
iHike GPS
Show your current location, where you've been, and find new routes. Maps automatically switch as you travel.
Trailhead by The North Face
Use your current location to find the nearest hiking trails, including their length, descriptions, pictures and tips.
Smithsonian Stories of World Heritage
In honor of the 1972 UNESCO Convention concerning the Protection of World Cultural and Natural Heritage Sites, the Smithsonian and UNESCO have partnered to produce the Stories of World Heritage app - a list of the most outstanding natural and cultural sites in the world with stories and maps.
Leaf Snap
Leafsnap uses recognition software to identify plants by their leaves. The app currently covers trees of the Northeast and Washington, DC.
Florafolio
An interactive field guide to native trees, shrubs, perennials, ferns, vines, and grasses indigenous to Eastern Canada and the Northeastern United States.
Botany Buddy
Uses 4,500 unique images to find and identify over 1,000 different species of trees and shrubs,
Audubon Wildflowers
Guide to flowers in North America, with taxonomic guides, range maps, natural history, and photos for over 1,600 flowers in the US and Canada.
TreeBook
Includes 100 of the most common trees in North America as a helpful resource guide.
Audubon Trees
Guide to trees in North America, with taxonomic guides, range maps, natural history, and photos for over 700 species.
Fungitron – Mushroom Guide
Developed in cooperation with members of the Mycological Society, the iMushroom Guide is an original guide to edible, poisonous, exotic, and medicinal fungi.
Audubon Mushrooms
Covers over 560 common species of mushrooms, other fungi and slime mold, including photos,taxonomic information, species descriptions, and reference material.
USDA Dried Botanicals Identification Key shows the amateur to the professional botanist how to distinguish species from dry specimens. Apple App Store (iPhone) | Google Play (Android)
USDA Federal Noxious Weeds Key provides photographs, illustrations, and fact sheets to help identify 31 families of unwanted weeds. Apple App Store (iPhone) | Google Play (Android)
Bee Smart
Use Bee Smart™ Pollinator Gardener to browse through a database of 1,000 native plants, according to pollinators you want to attract, light and soil requirements, bloom color, and plant type.
Audubon Insects and Spiders
Includes 510 of the most common species of insects and spiders found in North America, featuring habitat, range, size, and photographs of each species.
Audubon Butterflies
Guide to over 600 butterflies of North America, with beautiful photographs to help in identification.
iBird Plus
Offers comprehensive identification, behavior, habitat and ecology information, hand-drawn illustrations, professional photographs, range maps, and playable calls for 924 North American and Hawaiian bird species.
BirdsEye
Track your bird sightings and see others’ local bird observations.
Peterson Field Guide
Guide to birds, including a log of those you’ve seen.
Audubon Mammals
Guide to over 270 mammals in the U.S. and Canada, including information on appearance, habitat, ranges, natural history, and behavior; and photographs.
Find-A-Fish
An advanced freshwater game fish identification application with stunning artwork, accurate descriptions, and helpful hints to help you distinguish between 60+ freshwater species.
State of the Air
From the American Lung Association, this app gives you the ability to see air quality indexes and alerts anywhere in the United States.
Star Walk
Easily locate and identify 20,000+ objects in the night sky using a 360-degree, touch-control star map that displays constellations, stars, planets, satellites, and galaxies currently overhead.
Sky Map
Identify stars and planets by pointing your device towards objects in the sky, zoom in and out, and switch various layers such as constellations, planets, grids, and deep sky objects. Determine the locations of planets and stars relative to your own current location.
SoilWeb
Interface with the USDA-NRCS digital soil survey data to provide a graphical summary of the soils mapped at your current location
RockHound
Search over 150 sites to find a description of the area, and what rocks, gems, and minerals you may find there.
iNaturalist/Encyclopedia of Life
Record what you see in nature, meet other nature lovers, and learn about the natural world as part of the largest database of living things in the world.
Creek Watch
Help monitor the health of your local watershed by snapping a picture and report how much water and trash you see. Data is aggregated and shared with water control boards to help them track pollution and manage water resources. 
WildObs Observer
Easily report your wildlife sightings and identify species. Your observations will be shown and tagged on National Wildlife Federation’s Wildlife Watch website.
Sci.Spy
Snap a photo of wildlife and other items observed outdoors. You can also partake in a citizen science mission or share your experiences with others.
iNaturalist
Log your nature-based sightings with or without a photo and write in your notes with the date and location automatically recorded.
Project Noah
Participate in citizen scientist missions and explore, uploading photos and details about flora and fauna, and meet other nature enthusiasts.
MyNature Tracks
Identify animal tracks, scat, and animal sounds
U.S. Army Survival Guide
The entire U.S. Army survival guide on your hand-held device!