Mike, I'm coming up close to your area next month for a wedding.. A.) does this make me a donor? and B.) What should I do, give me some good recommendos
Go to Horse & Dragon and Jessup Barrel House.
If you give a better idea of where you'll be and your interests, I can add more detail. Here's some idea for the Fort Collins area.
1) Go on a brewery tour. KC has BBQ, we have beer. Like kstofer said, Horse & Dragon is a great place (a little out of the way, but worth it). I also like Equinox which is in Old Town Ft Collins. New Belgium and Odell's are more national brands, but they're huge and more touristy than those mentioned above. There's a ton of breweries here, but only a handful I'd recommend. There are organized tours if you don't want to drive or you can Uber it.
2) Drive by CSU's new stadium and check it out in person. I think you'll like CSU's campus.
3) Go to a pot shop and check it out even if you don't buy anything. It's an interesting experience. I'd suggest the one on Mountain Ave in Old Town Ft Collins. It's probably a 5 minute walk east of Equinox Brewery above.
4) If you're in Loveland, drive up the Big Thompson Canyon. Hwy 34 is closed past the narrows part of the Big Thompson Canyon, but this is the stunning part of the drive. It's really pretty.
5) If in Ft Collins and only have limited time, drive around Horsetooth Dam. There's some decent hiking around there too including a trail up to the base of Horsetooth Rock.
6) Another drive is to go up Hwy 14. Cameron pass is good turnaround point on this drive. Grey Rock hiking trail is on the way (3 miles each way). Cameron Pass is probably a 2 hour drive from Ft Collins.
7) Go skiing if you have time. We've been getting a lot of snow in the mountains this year. Skiing is about an hour from Denver (2 hours from Ft Collins).
I hope this helps and let me know if you have any more questions.
This is a good list and much more thorough than mine. The Poudre Canyon (up Hwy. 14 like Mike said) is great, especially if you have the time to go all the way up to Cameron Pass. The lower half of Big Thompson (Hwy. 34) is more impressive though if you have a limited amount of time, and you're more likely to see wildlife there (bighorn sheep).
If you have little ones there is a very family-friendly hike on the west side on Loveland called Devil's Backbone, only 1 mile to a natural viewpoint. Also, if you are in Loveland and the womenfolk are tired of beer, there is a great brewery/cidery combo called Big Beaver Brewing/Climb Hard Cider - bonus is that you can only get beer on one side and cider on the other so it's a great excuse for some healthy separation.