Parking for Jemez Historic Site is right beside the main road through the Jemez Mountains (Hwy 4), directly opposite a much more recent religious building, Mary Mother of Priests Church, built in 1962 on the site of an old hotel. Admission to the ruins (2018) is $5 per person, and entry is through the museum, which is open all year though closed on Mondays and Tuesdays. A detailed trail guide is available, describing 24 points of interest.
The loop trail starts beside some low wall remnants from the pueblo, only recently excavated, and soon reaches a large kiva, a fully restored structure that can be entered by means of a ladder, but not photographed inside. Two other kivas have been identified but there is no trace above ground after they, like some other ruins, were re-covered for preservation. Next are two more sets of walls from the pueblo, opposite unexcavated rubble mounds, before the main building at the site, the mission church, which has long since lost its roof and part of the upper walls but remains large and imposing, and is still used for occasional ceremonies. Most of the interior is occupied by the nave, which has steps up to a chancel at the north end, and a passageway leading to an unusual, octagonal belltower. A suite of subsidiary rooms adjoins on the east side, including the priest's residence, beyond which are other rooms and wall fragments, extending to the rim of a seasonal creek flowing down Church Canyon, a tributary of Jemez Canyon.