From Kara Lamb a week or 2 ago:
"Last thing: security at Green Mountain. Nothing in this area has changed. The gate is suppose to be open seven days a week during daylight hours. Sometimes, we have a little trouble finding someone to open it, but I haven't heard any complaints for a while. If you drive all the way up there, there is still plenty of light (6:00 p.m. or earlier), and the gate is closed, feel free to call my cell phone: (970) 215-9545. I'll see if I can get someone out there.
If you do make it down fishing or kayaking the Lower Blue, remember to be out by 7 p.m.. If they close the gate on you, they will tow your car and anything else you have down there. "