Pediocactus knowltonii

USA, New Mexico, San Juan, > 2300 m

USA, Colorado, Rio Arriba

USA, New Mexico, Colorado border, La Boca Ranch, > 2000 m

USA, New Mexico, San Juan, B.L.M.'s Reese Canyon Research Natural Area, 1800 m

USA, New Mexico, San Juan, Reese Canyon Research Natural Area

USA, New Mexico, San Juan, Reese Canyon Research Natural Area

USA, New Mexico, San Juan, At the Colorado-New Mexico state line, along Los Pinos River, south of La Boca, CO

USA, Colorado, Los Pinos river

USA, New Mexico, San Juan, La Boca Ranch, > 1910 m

USA, New Mexico, Los Pinos river, NM / CO