4 Best Sights in Dolores, Southwest Colorado

Spread across 176,000 acres of arid mesa and canyon country, the Canyons of the Ancients National Monument holds more than 20,000 archaeological sites, the greatest concentration anywhere in the United States. Some sites, like apartment-style cliff dwellings and hewn-rock towers, are impossible to miss. Others are as subtle as the remains of agricultural fields, springs, and water systems. They are powerful evidence of the complex civilization of the Ancestral Pueblo people. Lowry Pueblo, in the northern part of the monument, is a 40-room pueblo with eight kivas (round chambers used for sacred rituals). Its Great Kiva is one of the largest known in the Southwest.

Exploring the monument area can be a challenge: roads are few, hiking trails are sparse, and visitor services are all but nonexistent. The visitor center, which is also a museum, is 3 miles west of Dolores on Route 184. The best bet is a guided hike with the nonprofit Southwest Colorado Canyons Alliance ( www.swcocanyons.org/tours).

Housed in a replica of the town's 1880s-era train station, this museum displays Galloping Goose No. 5, one of only seven specially designed engines built in the 1930s. The "Geese" were motored vehicles built from touring-car bodies that could operate for much less than steam-powered engines.

Straddling the Colorado–Utah border, this monument is known for distinctive square, oval, round, and D-shape towers that were engineering marvels when they were built around AD 1200. The buildings are spread throughout a series of ancient villages, once home to 2,500 people. The visitor center is on the Utah side of the monument. Per rangers, don't attempt to use your GPS to find Hovenweep. Most devices will take you either over rough dirt roads or to more remote parts of the monument.

In 1985, crews completed construction of an irrigation dam across the Dolores River, forming the McPhee Reservoir, the second largest in the state. It draws anglers looking to bag a variety of warm- and cold-water fish along its 50 miles of shoreline, which is surrounded by spectacular specimens of juniper and sage as well as large stands of pinyon pine. There are two boat ramps. The area also has camping, hiking, and a relatively easy mountain-bike trail, and the mesa offers panoramic views of the surrounding San Juan National Forest.