Entry No. 86 — the Grand Junction file — filed under: after-dark
Highline Lake State Park - After-Dark Paddle & Stargazing
Twin lakes ringed by high desert just off I-70 west of Grand Junction, where motor-free Mack Mesa Lake and the hand-launch East Ramp on Highline Lake let you slip a kayak or paddleboard onto glassy water as evening light fades. It's far enough from town lights that the Western Colorado Astronomy Club uses it as a dark-sky star-party site, and the park is even building a Horizons Amphitheater for stargazing programs. Day-use gates close at 10 p.m., so time a late paddle before closing or come for a club star night; reflected sky on flat water makes it a quietly romantic alternative to a crowded overlook. (Both lakes are zebra-mussel designated, so clean your gear.)
The story
Twenty-five minutes northwest of Grand Junction off I-70, Highline Lake State Park sits like two liquid mirrors dropped into high-desert scrub. By day, it is typical state park territory, but once twilight hits, the desert temperature drops and the water stills to glass. The Western Colorado Astronomy Club uses this patch of Loma as a star-party site because light pollution from the Grand Valley loses its grip out here—a pitch-black pocket deep enough that the park even planned a dedicated venue, the Horizons Amphitheater, for night-sky stargazing.
The real move isn't waiting for an official event, because the park doesn't actually run a organized moonlight paddle program. You have to self-guide it. You haul a kayak or paddleboard to Mack Mesa Lake—which bans motorboats entirely—or use the hand-launch East Ramp on Highline Lake. When evening light fades completely, you push off onto black water where constellations reflect double: once in the sky, and once directly under your hull.
There are two hard constraints you need to account for. Both lakes are zebra-mussel designated, meaning you must clean and dry your gear before putting in. And unless you have a campsite booked, day-use gates shut down at 10 p.m. That leaves a precise, quiet window between sunset and lockup to float on reflected starlight in total silence.
What it's like
Turn off 11.8 Road into Loma as dusk approaches and head straight for the East Ramp or Mack Mesa Lake. Once the daytime crowd packs up, the noise dies down and the water flattens out completely. Launch while there is still enough residual light to adjust your gear, pack a headlamp for the shore return, and keep a strict eye on the clock so you have your vessel re-racked and your car past the gate before the 10 p.m. closure. Call 970-858-7208 ahead of time to double-check gate hours and active water-skiing zones on Highline Lake.
The move: Bring kayaks or paddleboards to the East Ramp around a full moon, glide out onto Mack Mesa Lake, and float in the dark watching constellations and their reflections.
📍 Before you go About 25 minutes northwest of Grand Junction. The park doesn't run an official organized moonlight paddle, so this is self-guided - check gate/closing hours and water-skiing zones, and call 970-858-7208. Mack Mesa and the East Ramp are paddle/hand-launch only.
- 📍 Loma
- 💸 $
- ⚡ Low-key
- 🌗 Outdoors
Where: 1800 11.8 Road, Loma, CO 81524
Hours: Added 2026-06-23 — confirm current hours before you go.
⚠ Seasonal or scheduled — always check before you go.
Pair it with
- Colorado National Monument - Saddlehorn Night Sky Program — Trade liquid starlight reflections on Mack Mesa Lake for elevated red-rock canyon stargazing with park rangers just 13 miles away.
- Mike the Headless Chicken Sculpture — Stop in nearby Fruita on your drive out to see the metal homage to western Colorado's most improbable 1945 farm story.
- Means Pottery Studio at By All Means Arts — Spend the late afternoon throwing clay at Fruita's FARM studio before heading northwest for a sunset launch on the water.
Good to know
Does Highline Lake State Park run guided night paddle tours?
No. It is entirely self-guided, so you must bring your own paddleboard or kayak and manage your own launch, float time, and safety gear.
What time do day-use visitors need to leave?
Day-use gates close at 10 p.m., so you must be off the water, packed up, and out through the park entrance before lockup.
Where can I launch a non-motorized craft?
Mack Mesa Lake is strictly motor-free, while the East Ramp on Highline Lake is specifically reserved for hand-launched craft like kayaks and paddleboards.
Are there invasive species regulations for boats?
Yes. Both lakes are zebra-mussel designated, so all kayaks, paddleboards, and floating gear must be cleaned, drained, and dried before entering the water.
Plan a visit & invite your people →
Further reading: cpw.state.co.us · wcacastronomy.org · actionhub.com · amandamatildaphotography.com
last checked: 2026-06-23