We researched Standley Lake Regional Park Campground for a future trip, but we have NOT stayed there. Please note that this campground does NOT have hookups or a dump station. However, it might be a little closer than St. Vrain State Park.
Last year, we drove through St. Vrain; and it is very nice. One section of the campground is older and has mature trees and lots of shade; and the other side is newer and has no shade. However, one loop has electric, and another has full hookups. Plus, there is a dump station available. I think the restroom/shower facilities are new (or refurbished) since the big floods a couple of years ago.
See details on both campgrounds below:
Standley Lake Regional Park Campground
GPS: 39° 52.628'N 105° 7.702'W
Description condensed from Website text:
Campground accommodates campers, trailers and tents, with several sites along the waterside. Park has two restroom facilities with outdoor showers and drinking water. All campsites have fire pits and picnic tables. No hookups and no dump station.
Camping May 1 through Sept. 29 on a first-come, first-serve basis except for holiday weekends, when park is open only to season permit holders. Reservations not accepted. No refunds. Pets welcome, but they are not permitted in the water at any time and must remain on a leash.
This is a NO ALCOHOL park. See additional rules on Website, including details on 14-day stay limit.
St. Vrain State Park Campground
3525 CO-119 (3525 Weld County Road 24 1/2)
Longmont, CO 80504
GPS: 40° 10.076'N 104° 59.482'W
Formerly known as "Barbour Ponds". Electric-only loop has graded dirt roads with water spigots scattered throughout area, and pit toilets. Full-hookup loop has paved roads, flush toilets and pay showers. Dump station near entrance. Good OTA TV, cellphone and mobile broadband signals.
Rate: $26/day, electric only. $30/day, full hookups (2014).