Did you know that Illinois is home to natural sand dunes formed over 19,000 years ago? The Green River Lowlands Nature Preserve showcases one of Illinois’ best-kept secrets: a unique landscape shaped by glacial retreat that created a diverse mosaic of habitats spanning 832 square miles across Bureau, Henry, Lee, and Whiteside counties. This extraordinary preserve features some of the flattest parts of Illinois alongside towering sand dunes, wetlands, and prairie ecosystems that support rare species found nowhere else in the state.
Getting There & Planning Your Journey
The Green River Lowlands Nature Preserve is accessible through several entry points, with the main areas being Green River State Wildlife Area and Amboy Marsh Nature Preserve. Both offer different perspectives of this unique ecosystem.
Closest Airports
- Chicago O’Hare International Airport (ORD) – 150 km (93 miles) east
- Chicago Midway International Airport (MDW) – 160 km (99 miles) east
- Quad City International Airport (MLI) – 80 km (50 miles) west
Ready to Plan Your Trip?
Find the best flight deals to explore the unique ecosystems of Green River Lowlands.
Driving Directions
To reach Green River State Wildlife Area, travel 13 miles south of Dixon on Route 26, then turn right (west) and travel 3 miles on Maytown Road to the site entrance. For Amboy Marsh Nature Preserve, head to 1701 Morman Road, Amboy, IL 61310. The Gremel Nature Preserve is located at 1881 Lewis Road, Amboy, IL 61310.
Explore at Your Own Pace
Rent a car to discover all the hidden corners of Green River Lowlands and surrounding attractions.
Best Time to Visit & Weather Tips
The Green River Lowlands Nature Preserve offers unique experiences throughout the year, but certain seasons showcase its biodiversity better than others.
Recommended Seasons
Spring (April-June)
The preserve comes alive with migrating birds, blooming wildflowers, and active wildlife. Temperatures range from 10-24°C (50-75°F), making it perfect for hiking and photography. Spring rains create temporary wetlands that attract diverse waterfowl.
Fall (September-October)
Experience beautiful autumn colors as prairie grasses turn golden and oak savannas display vibrant foliage. Temperatures range from 7-21°C (45-70°F). Fall migration brings many bird species through the preserve, making it excellent for birdwatching.
Seasons to Avoid
Summer (July-August): Can be extremely hot and humid with temperatures reaching 32°C (90°F) or higher. Mosquitoes and ticks are abundant.
Winter (December-February): While beautiful, trails can be difficult to navigate with snow and ice. Temperatures often drop below -7°C (20°F).
Hunting Seasons: The preserve is closed during specific hunting dates in November, December, and January. Check the official website for exact dates before planning your visit.
What to Pack
- Binoculars for wildlife viewing
- Sturdy hiking boots suitable for sandy and occasionally wet terrain
- Insect repellent (especially important during warmer months)
- Sun protection (hat, sunscreen, sunglasses)
- Water bottle and snacks (no facilities available on-site)
- Field guides for identifying plants and wildlife
Getting Around Locally
The Green River Lowlands Nature Preserve is best explored on foot via its network of trails. There is no public transportation to the preserve, so having your own vehicle is essential.
Trail System
Both Amboy Marsh Nature Preserve and Green River State Wildlife Area feature well-marked trails that take you through various ecosystems. Trails range from easy to moderate difficulty, with sandy terrain being the most challenging aspect. Most trails form loops of 1-3 km (0.6-1.9 miles) and can be completed in 1-2 hours.
Accessibility Note: Due to the sandy nature of the trails, wheelchair accessibility is limited. The main parking areas have firm surfaces, but trails quickly transition to soft sand that can be difficult to navigate with mobility devices.
Local Transportation Options
| Option | Availability | Notes |
| Taxi Services | Limited | Must be arranged in advance from Dixon or Amboy |
| Rideshare (Uber/Lyft) | Very Limited | Not reliable in this rural area |
| Bicycle Rentals | None | Bring your own if planning to cycle |
| Guided Tours | Seasonal | Contact Illinois Audubon Society for schedule |
Where to Stay
While there are no accommodations within the preserve itself, several options are available in nearby towns within a 20-30 minute drive.
Hotels & Motels
The cities of Dixon (20 km/12 miles) and Sterling/Rock Falls (30 km/19 miles) offer standard hotel accommodations including Hampton Inn, Holiday Inn Express, and local motels. Prices typically range from $80-120 per night.
Bed & Breakfasts
Several charming B&Bs can be found in historic Dixon, offering personalized service and local knowledge. Loveland Inn and Heritage Crossing B&B are popular choices, with rates from $110-150 per night including breakfast.
Camping
For outdoor enthusiasts, White Pines State Park (40 km/25 miles) offers camping facilities with both tent sites and cabins. Lowden State Park also provides camping options. Campsite fees range from $15-25 per night.
Find Your Perfect Stay
Book accommodations near Green River Lowlands Nature Preserve for your nature getaway.
Dining & Local Cuisine
There are no dining facilities within the preserve, so visitors should plan accordingly by bringing water and snacks. However, the surrounding communities offer several dining options featuring local ingredients and Midwestern cuisine.
Nearby Dining Options
- Amboy (5-10 minutes): The Amboy Café offers homestyle breakfast and lunch with hearty portions perfect for fueling up before or after a hike.
- Dixon (20 minutes): Offers more variety including Basil Tree Ristorante (Italian), Salamandra’s (Mexican), and Orom’s (American comfort food).
- Sterling/Rock Falls (30 minutes): Wider selection including farm-to-table options at Champs Sports Bar & Grill and authentic BBQ at Arthur’s Garden Deli.
Local Specialties
The region is known for its agricultural heritage, and many restaurants feature locally sourced ingredients. Look for seasonal specialties like fresh sweet corn in summer, apple cider in fall, and hearty stews in winter. The area’s farming tradition means you’ll find excellent pork dishes, freshwater fish, and homemade pies on many menus.
Picnic Tip: For a truly immersive experience, stop at one of the local farmers markets (Dixon Farmers Market on Wednesdays or Sterling Farmers Market on Saturdays) to gather supplies for a picnic. The Green River State Wildlife Area has designated picnic areas with tables.
Attractions, Sightseeing & Activities
The Green River Lowlands Nature Preserve offers a variety of natural attractions and outdoor activities that showcase its unique ecosystems and biodiversity.
Natural Highlights
Sand Dunes
One of the preserve’s most unique features is its natural sand dunes, formed thousands of years ago by glacial action. These dunes provide habitat for specialized plants and animals adapted to the dry, sandy conditions.
Wetlands & Marshes
The preserve contains remnants of what were once vast wetlands known as the “Great Swamps.” These wetland areas support diverse wildlife including rare birds, amphibians, and aquatic plants.
Top Activities
- Birdwatching: The preserve is home to over 200 bird species throughout the year, including the state-endangered Blanding’s turtle and rare species like the American Bittern and Blue Grosbeak.
- Photography: The diverse landscapes offer endless opportunities for nature photography, particularly during spring wildflower blooms and fall color changes.
- Hiking: Several trails wind through different habitats, allowing visitors to experience the full range of ecosystems within the preserve.
- Wildlife Viewing: Besides birds, visitors may spot white-tailed deer, foxes, muskrats, and various reptiles including the ornate box turtle and western hognose snake.
- Plant Identification: The preserve features rare plant species including poppy mallow, various sedges, and prairie grasses not commonly found elsewhere in Illinois.
Enhance Your Experience
Book a guided nature tour to learn about the unique ecosystems of Green River Lowlands from expert naturalists.
Museums, Cultural Spots & Festivals
While the Green River Lowlands Nature Preserve itself focuses on natural history, the surrounding area offers cultural attractions that complement your nature experience.
Nearby Cultural Attractions
- Loveland Community House and Museum (Dixon): Features exhibits on local history including the area’s natural heritage and ecological changes over time.
- Northwest Territory Historic Center (Dixon): Learn about the settlement history of the region and how it impacted the natural landscape.
- Ronald Reagan Boyhood Home (Dixon): While primarily focused on the former president, the site also provides context for rural Illinois life and land use.
Annual Events
| Event | Timing | Description |
| Spring Bird Migration Count | May | Citizen science event documenting bird species passing through the preserve |
| Prairie Wildflower Walks | June-July | Guided tours focusing on the preserve’s unique plant communities |
| National Public Lands Day | September | Volunteer opportunities and educational programs |
| Christmas Bird Count | December | Annual citizen science event counting winter bird populations |
Educational Programs: The Illinois Audubon Society’s Birdsong Chapter regularly hosts educational programs at Amboy Marsh Nature Preserve. Check their website or contact amboymarsh@illinoisaudubon.org for upcoming events.
Sports, Nature & Outdoor Experiences
The Green River Lowlands Nature Preserve offers diverse outdoor experiences throughout the year, with activities varying by season and location within the preserve.
Seasonal Outdoor Activities
Spring
- Wildflower photography
- Amphibian observation
- Migratory bird watching
- Butterfly spotting
Summer
- Early morning hiking
- Dragonfly watching
- Reptile observation
- Prairie plant identification
Fall
- Fall foliage photography
- Hawk migration watching
- Seed collection (with permission)
- Regulated hunting (specific areas)
Hunting
Green River State Wildlife Area permits regulated hunting for white-tailed deer, wild turkey, and mourning dove during designated seasons. Hunters must obtain proper permits and follow all Illinois Department of Natural Resources regulations. The preserve is closed to non-hunters during specific firearm deer seasons for safety.
Volunteer Opportunities
The Illinois Audubon Society’s Birdsong Chapter coordinates volunteer workdays throughout the year, focusing on habitat restoration, invasive species removal, and trail maintenance. These events provide a hands-on way to contribute to conservation while learning about the preserve’s ecology from experienced stewards.
“Volunteering is a great way to get out of your shell and connect with this special place. No experience is necessary, and we can supply all tools and training.”
Safety, Etiquette & Local Customs
Visiting the Green River Lowlands Nature Preserve safely requires preparation and awareness of both natural hazards and preserve regulations.
Safety Considerations
- Ticks and Mosquitoes: Use insect repellent and check for ticks after your visit, especially during warm months.
- Poison Ivy: Learn to identify and avoid this common plant that causes skin irritation.
- Weather: Illinois weather can change rapidly. Check forecasts and be prepared for sudden temperature changes or storms.
- Hydration: Bring sufficient water as there are no drinking fountains within the preserve.
- Cell Service: Mobile phone coverage can be spotty in remote areas of the preserve.
Preserve Etiquette
- Stay on Trails: To protect sensitive habitats and avoid getting lost.
- No Collection: Leave all plants, animals, and natural objects as you find them.
- No Dogs: Pets are not permitted in Amboy Marsh or Gremel Nature Preserves.
- Pack Out Trash: No garbage facilities are available; carry out everything you bring in.
- Quiet Observation: Maintain a respectful volume to avoid disturbing wildlife and other visitors.
- Photography: Photography is welcomed but drones are prohibited without special permission.
Hunting Season Awareness
During designated hunting seasons (typically portions of November through January), non-hunters should wear bright orange clothing if visiting areas of the preserve that remain open. Some sections close entirely during firearm deer seasons for safety reasons. Always check the Illinois Department of Natural Resources website for current hunting dates before planning your visit.
Visitor Comments About Green River Lowlands
Here’s what recent visitors have to say about their experiences at the Green River Lowlands Nature Preserve:
“We visited in early May and were amazed by the diversity of birds! Spotted over 40 species in just one morning, including a Blue Grosbeak which was a life bird for me. The trails were well-maintained and the sand dunes were unlike anything I expected to find in Illinois.”
“The volunteer workday we participated in was both educational and rewarding. The stewards were knowledgeable and passionate about restoring the native habitats. It gave us a deeper appreciation for the preserve and we learned to identify several invasive species we now remove from our own property.”
“As a photographer, I found endless inspiration in the unique landscape. The contrast between wetlands and sand prairies creates beautiful compositions, especially during golden hour. I was fortunate to photograph a Blanding’s turtle sunning itself on a log – a rare sight indeed!”
Practical Travel Tips
Make the most of your visit to Green River Lowlands Nature Preserve with these helpful suggestions:
What to Bring
- Field Guides: Bring guides for birds, plants, or insects depending on your interests.
- Camera: The diverse landscapes offer excellent photography opportunities.
- Binoculars: Essential for wildlife viewing, especially birds.
- Trail Map: Download or print maps before arriving as cell service is unreliable.
- First Aid Kit: Basic supplies for minor injuries or allergic reactions.
Planning Resources
- Illinois Audubon Society: Amboy Marsh Information
- Illinois DNR: Green River State Wildlife Area
- eBird Hotspot: Check recent bird sightings at the preserve
- Weather: National Weather Service for accurate forecasts
Accessibility Information: Most trails are not wheelchair accessible due to sandy terrain. The main parking areas and some initial pathways at Green River State Wildlife Area have firmer surfaces. Contact site managers in advance if you have specific accessibility needs.
Nearby Attractions
Extend your trip by visiting these complementary destinations within an hour’s drive:
- Nachusa Grasslands: A 4,000-acre tallgrass prairie restoration project with bison herds (30 minutes).
- White Pines State Park: Features beautiful pine forests, limestone bluffs, and cabins for overnight stays (40 minutes).
- Rock River: Offers fishing, kayaking, and scenic views through several nearby towns (15-30 minutes).
- John Deere Historic Site: Learn about agricultural history that shaped the region’s landscape (45 minutes).
Your Gateway to Illinois’ Hidden Natural Treasure
The Green River Lowlands Nature Preserve offers a rare glimpse into Illinois’ natural heritage, where glacial forces shaped a landscape of contrasts—from towering sand dunes to lush wetlands. This unique ecosystem provides refuge for rare species and offers visitors an opportunity to experience nature in its most authentic form. Whether you’re a dedicated birder, a photography enthusiast, or simply seeking a peaceful connection with nature, the preserve rewards those who take the time to explore its diverse habitats. By understanding and respecting this special place, you become part of its conservation story, helping to ensure that future generations can also discover the hidden wonders of the Green River Lowlands.
The above is subject to change.
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