Hi Jenlou
Are you friends with the Gardners of St Francis? They attended the Fall Colorado Rally Estes Park. We stayed at Spruce Lake RV. The space was big enough for our 3670, but it was tight manuevering to get into. They are right on the Big Thompson, and have a small private lake where you can fish for a fee.
I would rate Spruce Lake as just OK, nothing special. They really pack them in there. Service from employees OK - again, nothing special.
If I had my choice, I would have stayed outside Estes, and NOT had to haul the BH up to and THRU Estes, and then back DOWN after the Rally. I was concerned about my brakes when we got intraffic coming down, but were OK.
Hopefully Randy Reano will chime in, he had a favorite RV park I think near Loveland that got pretty good reviews.
Being a teacher, I understand you have a limited schedule, but JULY?? The only folks who won't be in Rocky Mountain NP in July will be the ones at Grand Canyon or Yellowstone... Can you say crowded?
Lastly, I would invite you to join the Heartland Owners Club, and hopefully attend one of our Colorado Rallys when your schedule permits...