Only a small group - 3 drove up from White Rock Senior Center and met spouse and me. We parked at the official parking lot for the new, paved Canyon Rim Trail (across from the construction site of the Los Alamos Cooperative Market on NM 502 aka Main Hill Road - slow down or you'll miss the turn off).
Had to quickly cross the busy road and walked behind the Holiday Inn to pick up the Pueblo Canyon Rim Trail (dirt trail that runs along fence on north side of Los Alamos Airport - great views of the tent rocks in Pueblo Canyon) which we took west to the airport terminal building.
Another access can be had by walking down the sidewalk along Entrada Road at Los Alamos County's new Pajarito Cliffs site and picking up the Pueblo Canyon Rim Trail on the north side of the county warehouses. Look for a small sign crediting the Youth Conservation Corps (sponsored by the YMCA) for the work they did on this trail and then turn left toward the airport.
After we reached the airport terminal, I continued west toward the paved Mesa Trail and East Park but the rest walked the streets back to continue on the Canyon Rim Trail at its western terminus near the fire station across from East Park (the Canyon Rim Trail will eventually extend to the Los Alamos Medical Center). Even so, I caught up with them and we all moseyed east back to the parked cars. I eschewed the car ride offered by spouse and instead did "walk fast-walk slow" intervals, fartlek style, back to the fire station and called it a day.
The Canyon Rim Trail is close to 2 miles RT if you do an out and back on it. The Mesa Trail is close to 1 mile RT out and back. A sign at the Canyon Rim trailhead suggests an almost 4 mile loop by walking on the Canyon Rim Trail, the Mesa Trail and the Pueblo Canyon Rim Trail. The eastern continuation of the Pueblo Canyon Rim Trail connects with the Camp Hamilton Trail near Eastgate Industrial Park. This opens up a number of possible hikes utilizing the trails in the Pueblo Canyon and Bayo Canyon areas.