Frank, James Frank, adult, adults, adventure, adventures, adventuresome, adventurous, America, American West, analyze, Aspen tree, Aspen trees, Autumn, boy, boys, boys and girls, brother, brother and sister, Caucasian, Caucasians, change, changes, child, childhood, children, chlorophyll, CO, Colo., color, color photograph, color photographs, color photography, Colorado, compare, couple, dad, dads, daughter, daughter and son, daughters and sons, enjoy, enjoyment, examine, examining, exercise, exercising, expedition, expeditions, exploration, explore, explorer, explorers, exploring, Fall, familial, families, family, father, fatherhood, fathering, fathers, female, female adult, female adults, females, field, fields, fitness, foliage, frond, fronds, fun, girl, girls, girls and boys, grass, grassland, grasslands, growing up, guys, health, hiking, hobbies, hobby, horizontal, horizontals, investigate, investigation, joy, kid, kids, kin, kinship, leaf, leafage, learn, learning, leaves, leisure time, male, male adult, male adults, males, mama, mamas, man, matriarch, matriarchs, meadow, meadows, men, mommies, mommy, mother, motherhood, mothering, mothers, mountain, mountains, nature, nuclear families, nuclear family, offspring, outdoor recreation, papa, papas, parent, parenthood, parenting, parents, parents and children, patriarch, patriarchs, people, person, persons, photosynthesis, pleasure, recreation, recreations, relations, research, researching, RMNP, Rocky Mountain National Park, Rocky Mountains, Rocky Mtn Nat'l Park, Rocky Mtn. NP, season, seasons, seat, seated, seating, sedentary, sibling, siblings, sister, sister and brother, sit, sitting, son, son and daughter, sons and daughters, sport, sports, study, studying, transformation, transformations, tree, trees, U.S., United States, United States of America, US, USA, walking, West, white, woman, women, youth, youths