Riggs Flat Dam – A Hidden Gem in the High Desert of Pima, Arizona
Discover the quiet charm of this modest 13‑meter dam, the surrounding spring‑filled landscape, and why it deserves a spot on your Arizona road‑trip itinerary.
Introduction
If you think Arizona’s water wonders are limited to the iconic Hoover Dam or the sprawling Lake Powell, think again. Tucked away at an altitude of 2,476 m in the rugged foothills of Pima County lies Riggs Flat Dam—a petite but picturesque concrete structure that offers a peaceful retreat for hikers, photographers, and anyone craving a slice of high‑desert serenity. With its crystal‑clear reservoir, panoramic mountain views, and a cluster of natural springs just a stone’s throw away, Riggs Flat Dam is the perfect off‑the‑beaten‑path destination for adventure‑seeking travelers who love to explore Arizona’s lesser‑known outdoor treasures.
About Riggs Flat Dam
What Is It?
- Type: Small concrete dam (🏗️)
- Height: 13.71 m (≈45 ft)
- Location: Pima County, Arizona, United States
- Coordinates: 32.707955 N, ‑109.966052 W
- Elevation: 2,476 m (≈8,123 ft) above sea level
Riggs Flat Dam was constructed to capture seasonal runoff from the surrounding high‑desert slopes. While it does not have a dedicated Wikipedia page, the dam is listed on several state water‑resource databases as part of Arizona’s network of small, multipurpose dams that support local irrigation, wildlife habitat, and occasional recreational use.
A Brief History
The exact year of construction is not publicly documented, but the dam’s design and materials suggest it was built in the mid‑20th century, a period when Arizona’s water agencies were expanding storage capacity to support growing agricultural communities in the southern part of the state. Over the decades, Riggs Flat Dam has remained relatively low‑key, allowing the surrounding landscape to retain its natural, untouched feel.
Why It Matters
- Ecological Hub: The reservoir creates a micro‑habitat for birds, amphibians, and desert flora that rely on a reliable water source.
- Scenic Value: At nearly 2,500 m altitude, the dam offers sweeping vistas of the Sky Islands and the distant Sonoran Desert.
- Recreational Potential: Though not a heavily developed park, the area is popular among local hikers, anglers, and photographers looking for a quiet spot away from crowds.
How to Get There
By Car
- Start in Tucson: From downtown Tucson, take I‑10 West toward Sahuarita.
- Exit onto AZ‑86 West: Follow signs for Ajo and continue for about 55 mi.
- Turn onto County Road 7: After passing the small community of Vail, look for a well‑marked unpaved turn‑off (often labeled “Riggs Flat”).
- Final Approach: The last 3 mi are a gravel road that winds up the foothills. A high‑clearance vehicle is recommended, especially after rain when the road can get slick.
- GPS Coordinates: Enter 32.707955, ‑109.966052 into your navigation system for the exact dam location.
- Parking: A modest pull‑out area sits at the base of the dam; it can accommodate 2–3 cars comfortably.
By Public Transportation
Public transit options to this remote area are limited. The most practical approach is to rent a car in Tucson or Phoenix. If you’re traveling on a budget, consider a rideshare service to the nearest town (Sahuarita) and then arrange a local shuttle or a guided tour that includes Riggs Flat Dam.
Accessibility
The dam itself is not wheelchair‑accessible due to uneven terrain and unpaved paths. However, the surrounding viewpoint and short walking trails are manageable for most able‑bodied visitors.
Best Time to Visit
| Season | Weather | Why Visit | Tips |
|---|---|---|---|
| Spring (March‑May) | Mild days (15‑25 °C), occasional showers | Wildflowers bloom on the surrounding slopes; water levels are higher, creating vivid reflections. | Bring a light jacket for early mornings. |
| Summer (June‑August) | Warm to hot (30‑38 °C), monsoon thunderstorms | Dramatic storm clouds and temporary waterfalls in nearby springs. | Arrive early to avoid afternoon heat; carry plenty of water. |
| Fall (September‑November) | Comfortable (18‑27 °C), clear skies | Fewer visitors, crisp air, and stunning sunrise colors over the reservoir. | Perfect time for photography; bring a tripod. |
| Winter (December‑February) | Cool (5‑15 °C), occasional snow at higher elevations | Rare snow‑capped views of the dam and surrounding peaks; peaceful solitude. | Dress in layers; road may be icy—check conditions before traveling. |
Overall recommendation: Late spring (April‑May) and early fall (September‑October) provide the most reliable weather, vibrant scenery, and comfortable hiking conditions.
What to Expect
Scenic Highlights
- Panoramic Reservoir: The dam’s modest lake reflects the sky like a natural mirror, especially during sunrise and sunset.
- Mountain Backdrop: The high‑desert foothills rise dramatically behind the water, offering excellent photo opportunities.
- Wildlife Encounters: Keep an eye out for Gila woodpeckers, cactus wrens, and occasional deer that come to drink.
Activities
- Hiking: Short, unmarked trails circle the reservoir and lead toward the nearby springs.
- Birdwatching: The water source attracts migratory birds during spring and fall. Bring binoculars!
- Photography: The combination of water, sky, and rugged terrain makes for compelling landscape shots.
- Fishing (if permitted): Small‑mouth bass and native catfish have been reported in the reservoir; verify local regulations before casting a line.
Facilities
Riggs Flat Dam is a primitive site—there are no restrooms, picnic tables, or visitor centers. Pack out all trash, bring a portable toilet if needed, and respect the natural environment.
Nearby Attractions
A short drive (4‑5 km) from the dam leads to several pristine springs that are perfect for a refreshing dip or a quiet picnic.
| Attraction | Distance | What to See | Link |
|---|---|---|---|
| Unnamed Spring | 4.3 km | Small bubbling pool surrounded by desert flora. | View Map |
| Goudy Spring | 4.7 km | Clear water emerging from limestone; great for birdwatching. | Goudy Spring Details |
| Carter Sawmill Spring | 4.8 km | Historic remnants of an old sawmill nearby; ideal for history buffs. | Carter Sawmill Spring Info |
| Unnamed Spring #2 | 5.1 km | A secluded oasis with a shallow wadeable pool. | Map Location |
| South Taylor Spring | 5.2 km | Lush vegetation and a gentle trickle—perfect for a quiet meditation spot. | South Taylor Spring Guide |
These springs are all publicly accessible and free to explore. Remember to follow Leave No Trace principles, especially when swimming or picnicking near the water.
Travel Tips
- Fuel Up Early: The gravel road to Riggs Flat Dam has no gas stations. Fill up in Tucson or Sahuarita before heading out.
- Carry Extra Water: Even though the dam provides a water source, it’s not treated for drinking. Bring at least 2 L per person for a half‑day visit.
- Check Road Conditions: During monsoon season (July‑September), flash floods can wash out sections of County Road 7. Call the Pima County Road Maintenance office for updates.
- Dress in Layers: Altitude means cooler mornings and evenings; a lightweight jacket is essential.
- Sun Protection: The high desert sun is intense. Wear a hat, sunscreen (SPF 30+), and UV‑blocking sunglasses.
- Leave No Trace: Pack out all trash, avoid feeding wildlife, and stay on established paths to protect fragile desert ecosystems.
- Photography Gear: A wide‑angle lens captures the expansive landscape; a polarizing filter helps reduce glare on the water.
- Safety First: Mobile signal can be spotty. Let someone know your itinerary and carry a personal locator beacon (PLB) or satellite messenger if you plan a longer hike.
Bottom Line
Riggs Flat Dam may not have the fame of the Grand Canyon or the size of the Hoover Dam, but its quiet charm, high‑altitude setting, and proximity to hidden springs make it a standout destination for travelers seeking authentic desert experiences. Whether you’re a photographer chasing golden hour reflections, a hiker craving solitude, or simply a curious explorer wanting to see a different side of Arizona’s water heritage, Riggs Flat Dam is a must‑visit spot that promises unforgettable moments in the heart of Pima County’s rugged landscape.
Pack your camera, fuel up the SUV, and set your GPS for 32.707955, ‑109.966052—the adventure awaits!