Plants

VC IFAS Agricultural Center
Atlas of Florida Vascular Plants
Florida Native Plant Society
Florida Natural Areas Inventory
University of Florida Herbarium
Volusia Plants

Conservation Lands
Florida Department of Environmental Protection
Stetson University Rinker Environmental Learning Center
The Nature Conservancy
United States Fish and Wildlife Service
United States Geological Society page
Volusia/Flagler Sierra Club
Volusia Forever Land Acquisition Program
Environmental Learning Center at Lyonia Preserve (under development)
Lyonia Preserve (under development)
Environmental Management Volunteer Opportunities
Land Acquisition and Management

Cleanups
Cleanups, general
Coastal Cleanup
Deleon Springs Cleanup
Halifax/Indian River Cleanup
St Johns River Cleanup

Hikes

Conservation Lands Outreach - Guided hikes
Volusia County trails

Trails

County trails

Volusia County trails
Multi-use trails
Hiking/Horseback Riding Trails
Water/paddling Trails

National trails

National Trail System

State trails

Florida Greenways & Trails
Florida Trail Association
Rails-to-Trails Conservancy 

Waterways

River of Lakes
Water Atlas
St Johns River Water Management District Lands
Blue Spring

Wildlife
Roadside Naturalist
Florida Department of Environmental Protection