Julie Favell from Lithgow Environment Group caught a "one in a billion" shot of a rare purple copper butterfly, which is now hanging up in the Lithgow Tourism Centre.
Ms Favell said she was lucky to be able to see this butterfly in real life.
"The photo I got is honestly a one in a billion shot, I just happened to be crouching down and was able to snap it," she said.
Ms Favell applied for funding from Local Land Services last year to get the display up.
"I put the idea to [Lithgow City Council tourism manager] Simon Francis, who approved it and then we went ahead with it," she said.
On Friday, May 17 Logan Signs owner Josh Logan put up the large picture of the rare butterfly in the Tourism Centre.
The small butterfly, commonly known as the Purple Copper Butterfly only comes out for a span of a couple of weeks during Spring within the Lithgow area.
Ms Favell spoke about how the butterfly is protected under state and federal acts, due to being close to extinction.
"My hope with this visual display was this delicate little butterfly that touched me deeply would do the same to others, as with all the native flora and fauna we have in Lithgow's natural areas," she said.
"This image allows easy access to view and gain more knowledge first hand."
She said it adds to the mystery and fun to have people go out into the environment to try and look for the butterfly.
"I hope this educates people on the beauty we have here, so when visitors come into the centre the message of the butterfly gets relayed, and the visitors can go and tell people and pass the message on," she said.
The Lithgow Environment Group has been hosting bus tours and will be showing a group from the University of the Third Age Northern Beaches, National Parks Association and National Trust of Australia what Lithgow has to offer as well as the new butterfly sign.
Julie Favell also secured funding from Local Land Services to put together a brochure of rare flowers from around the Lithgow area.
"We have these books that explain all about the flora and fauna but I thought it would be good to have a brochure for those who may be intimidated by the book," she said.
"The brochure allows people to go out and look for these plants and flowers and then if they are interested and want to know more they can purchase the book."
According to Ms Favell, the brochure shows rare and special plants that come from Hassans Walls, Glen Davis, Hartley and other surrounding areas.
"We have to thank Local Land Services for the funding or this would not be possible," she said.
"So watch where you are walking because you could be treading on these plants."
Ms Favell said our environment was an untapped asset that we need to promote to tourists.
"Katoomba is incredible but we need to emphasise that people can come over the mountain," she said.
"We need to start diversification, that's why we started these tours, because we can show a new place to people and educate them on the nature we have in our backyard."
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