I don't know about Denver but I live in Colorado Springs and they have a huge event coming up in April. It's called Just Between Friends. Here's a link in case you are interested.
You might have found it already, but the Just Between Friends sale is coming up in like 3 weekends, April 25th I think is the first day and it goes through that Sunday. Sunday is a half off day since it's the last day. Check out their website
Re: Consignment sales
I don't know about Denver but I live in Colorado Springs and they have a huge event coming up in April. It's called Just Between Friends. Here's a link in case you are interested.
https://www.coloradosprings.jbfsale.com/
The Christ Lutheran MOPS group in Highlands Ranch has one coming up first weekend in April. https://www.newtoyousale.org/New_To_You_Consignment_Sale/Welcome.html