This is out in the White River N.F / Flat Tops. The lake is about 13 miles directly north-northwest of Glenwood Springs.
Google Map link
https://goo.gl/maps/zjZ3JRutmWjc8vRs7
The FunTreks book lists this as a red trail - when passable (and I'd agree - some of the water holes were concerning).
https://funtreks.com/off-road-trails/adams-lake/
https://www.trailsoffroad.com/trails/197-adams-lake
I went two weekends in a row - the first to check it out and the second with a friend looking to get away from the city.
The first visit (July 20) was in the dry and I had no issue getting up the last hill just before the lake. On the second weekend the area was wet enough that the last hill had me kick'n the passenger out, toss'n on both lockers, trying the typical route, backing up and trying the easy route, then backing up and getting some momentum for the easy route.
I entered the forest via Dotsero / Coffee Pot Road. From asphalt there's 21 miles for an hour to two hour (depending on stops for pictures) of passenger-car-accessible gravel road and then ten minutes of trail that pickups hauling campers tackle when the road is dry (ugh - wild ruts from folks trying to not get stuck when it's muddy). From there it's ~5.7 miles of moderate jeep trail for an hour 20+. Perhaps five to eight water holes / water crossings with a couple that had me nervous going alone (read - no anchor points handy for a winch recovery). Holes where both axles would be "in it". Some were short enough to always have one axle on dry ground. Then there was the snowbank - July 20. It covered 1/2 of the width of the trail. It was 30' long and 2 to 3' high (July 29th it was only 10% of the prior week - no pics).
The trek is a bit long but the scenery is grand. The location is remote and little used. It has one, sadly, detraction: commercial airplanes. It's under a flight path. You're out in a remote area, up at 10,600 feet, with commercial airplanes flying overhead. The reminder that society is not far away. That one item was the bummer - though removing it - the place was nice with good scenery.
Mosquitoes were around but unusual (Deep Woods Off 99% DEET at work). They were not the Minnesota dive bomb bugs out for blood no matter what. We'd have three or four flying around our faces but not landing - odd. After the weekend I had three bites.
Some pix here with full sets at these two links:
www.JimWilliamson.net/automobile/2019-07-20--trails--cleanup-run--adams-lake/
www.JimWilliamson.net/automobile/2019-07-27--red-rocks--adams-lake/