There are more and more web pages about muskrat on the Internet every day. What formerly was the "Everything Muskrat - Biology" page became so large it was taking a long time to load. So I spread out the information on the following pages.
Nature Center Programs
Some nature centers have a program that feature muskrats in some special way.
The Green Briar Nature Center (East Sandwich, Massachusetts) offers a birthday party package, "Canoe Catamaran Adventure". It is described on their Birthday Parties page. Designed for children ages 4 and up, the children accompany a naturalist in a boat to explore the Smiling Pool where Grandfather Frog, Mrs. Snapping Turtle, and Jerry Muskrat roam.
If you take Sterling (New York) Historical Society's "Muskrat Ramble Boat Tour", you may see muskrats going about their business from a 16-foot launch named "Muskrat Ramble". The tour is mentioned in an article "Lake Ontario/Oswego County" by Spider Rybaak on Summer Times 2001 from the Syracuse New Times Net.
Hennepin Parks' Lowry Nature Center (Victoria, Minnesota) offers a school group program called "Muskrat Ecology". See More Lowry Nature Center School Programs.
The Aldo Leopold Nature Center (Monona, Wisconsin) has an at-school winter program, "Marsha Muskrat from the Marsh". It is described on their Field Trips page as being for grades 1-3. One of their naturalists, dressed as a muskrat complete with flippers for swimming and a waterproof coat, arrives to tell students about life in a marsh. The program is also mentioned on what appears to be an older page, School Programs/Teacher's Access.
You might think 1997 was a big year for interest in muskrats. The Penn State University Cooperative Wetlands Center, Millbrook Marsh Nature Center and Children's Museum of Centre County sponsored "It's Wet! It's Wild! It's a Day at Millbrook Marsh!" for children ages 8-14, October 4, 1997. Sleuthing through the marsh, searching for beaver and muskrat, peering at scuttling water critters through a microscope, birdbanding and sculpting at the water's edge are a few of the activities youths experienced at the Millbrook Marsh Nature Center. See Intercom Online, September 18, 1997, Volume 27, Issue 5; from the Office of University Relations, Pennsylvania State University.
A couple of facts about muskrat homes from pages that don't primarily deal with muskrats:
Trumpeter Swans often build their nests on top of muskrat lodges. See The Trumpeter Swan, from Alberta's Special Places and The Species that Inhabit Them hosted at Ray's web, and Trumpeter Swan, from Wisconsin Department of Natural Resources.
"The Caribou" by Lacreshia and "Runner of the Woods" by Andrew tell us that caribou sometimes munch on muskrat dens. From Animal Kingdom by Mrs. Abbass' Grade 4 at St. Michael's School, Goose Bay, Labrador.
Otters may use an old muskrat house for their den, according to River Otter from Animal Facts. And the bog turtle may use muskrat grass tunnels for travel, according to an article "Mind Bog-A-Ling" by Bob Fay from Nature Notes : Reptiles & Amphibians. Both hosted on WildWNC.org.
Turtles may hibernate in the underwater entrances to muskrat burrows. See Hibernation of Frogs and Turtles, Nature Bulletin No. 485, March 16, 1957, Forest Preserve District of Cook County (Illinois). From Nature Bulletin Index, hosted on Newton/ANL. (ANL = Argonne National Laboratory.)