Port Louisa National Wildlife Refuge is a protected area located in the state of Iowa, not Illinois. The refuge covers over 8,000 acres and consists of wetlands, forests, and grasslands. It is situated where the Iowa and Mississippi Rivers meet, making it an important stopover for migratory birds. Here are some reasons to visit the refuge:

1. Birdwatching: With over 250 bird species recorded in the refuge, it is a popular destination for birdwatching. Some notable species include bald eagles, great egrets, and sandhill cranes.

2. Hunting and fishing: The refuge allows hunting and fishing in designated areas, providing opportunities for sportsmen and sportswomen to enjoy the outdoors.

3. Hiking and wildlife viewing: The refuge has several trails that offer opportunities to explore the area and observe wildlife. Visitors can see deer, turkeys, and other animals in their natural habitat.

4. Environmental education: The refuge offers educational programs for visitors of all ages, providing an opportunity to learn about the ecology and conservation of the area.

Interesting facts about the refuge include:

- The area was once used for agriculture, but was converted to a wildlife refuge in the 1950s.
- In addition to birds, the refuge is home to several endangered and threatened species, including the Indiana bat and the Hine's emerald dragonfly.
- The refuge is part of the Mississippi River Flyway, a major migration corridor for birds.

The best time of year to visit the refuge depends on the visitor's interests. Spring and fall are prime birdwatching seasons, while summer offers opportunities for fishing and hiking. The refuge is open year-round, but some areas may be closed during hunting season. Visitors should check the refuge's website or contact the visitor center for up-to-date information.