A Kiwi woman has been found with a shattered pelvis in a US national park by a helicopter search crew.

Claire Nelson, 36, has been flown to a local hospital for treatment after rescuers found her on Friday about 4pm (local time).

Joshua Tree National Park superintendent David Smith said a River County Sheriff's helicopter crew discovered Nelson in a wash in the park.

The crew were able to make contact with her and were working to extricate her from the wash and get her to safety.

https://www.facebook.com/JoshuaTreeNPS/photos/a.10150574799050181.673608.138794585180/10160416461740181/?type=3

The search began about six hours earlier when Nelson was believed to be lost in the park.

Nelson had told a friend earlier in the week she was planning to hike to Lost Palms Oasis and would be back on Wednesday, but had not made contact with anyone since then.

KESQ news reported she was found with a shattered pelvis.

Smith said he knew she had some injuries but was unsure of the extent or how she came to be injured.

More to come.