the text on that page says you are welcome to use these images however you may not use them for any commercial purposes technically i don't think pacific northwest national incident management team can claim copyright on government photos but i think the lines are blurry since they're making a request like this in other words i don't think wikipedia can directly use these photos with the text given on their web site i would consider writing to the pnw team webmaster to ask if they'd grant permission you could explain to them that wikipedia and its mirrors won't be reselling the photos for profit and or you could mention that they shouldn't be claiming copyright on government works anyway or you could contact the forest service directly to see if those photos are available through a channel other than the pnw team web site elkspeak