There's also a competitive 30-month CD listed with an APY of 3.75% as of 1/14/2009. According to the rate table, it's an expandable CD that allows additional deposits. Add-on CDs can be a good hedge against a long low-rate environment.
The credit union also has a reward checking account that currently pays 5.01% APY on balances up to $25K (see post).
Membership is open to those who live, work, and worship or attend school within Warren FCU's Investment Area inside the city of Cheyenne. You can also be eligible to join via a long list of Select Employer Groups. Please refer to the credit union's field of membership page and SEG page for more details. Membership requires a minimum balance of $5 in the share savings account.
Branches are located in Cheyenne, Wyoming and Wellington, Colorado.
The credit union is federally insured by the NCUA (Charter # 7361).
Edit 12:55pm PT 1/14/09: Added FOM.