The link below has the agenda and workshop registration.
July 26 was the last day for the discounted block of hotel rooms. But ask for the rate and see what they say. Remember to book a hotel room if you need one.
Registration closes August 5.
Kudos to Mike Hansen for coordinating the workshop!
https://arboretum.wisc.edu/land-stewardship/grn-2019-workshop/
About Grassland Restoration Network blog
Bill Kleiman, Julianne Mason, and Mike Saxton publish this blog. Bill's daytime job is director of Nachusa Grasslands with The Nature Conservancy. Julianne works for the Forest Preserve District of Will County. Mike Saxton works for the Missouri Botanical Garden at their Shaw Nature Reserve. We are looking for guest authors on various topics of grassland habitat restoration. Contact us with your ideas.
grassland restoration network 
I called directly and asked for the rate yesterday (7/31) and was denied. Ended up booking at the Holiday Inn Express just down the road from the Sheraton because it was so pricey without the discount.
I was hoping to stay the evening after the workshop so I could rest up before driving home and wouldn’t have to drive at night. They wanted almost double the group rate for the additional night. For that price, I’ll be driving home after the workshop ends.