The meeting will take place in the Lory Student Center on the campus of Colorado State University. A block of rooms has been reserved at a special conference rate of $89+tax at the:

Hilton Fort Collins
425 W. Prospect Road
Fort Collins, CO 80526,
1-970-494 2972
Google Maps Link

The hotel is adjacent to campus and at easy walking distance to all conference venues.
You can make your reservation on the web via this link, or by contacting the hotel with group name MAA Rocky Mountain Sectional Meeting and group code: MRM.
The special room rate will be available until March 19th or until the group block is sold-out, whichever comes first.

Two other Hotels in walking distance to campus are:

Best Western University Inn
914 S College Avenue
Fort Collins, CO 80524-3033,
(970) 484-1984
The Armstrong Hotel
259 South College Avenue
Fort Collins, CO 80524,
Fort Collins also has many other hotels at varying price levels.